facebook linkedin twitter blogspot
you google pinterest tumblr
Contact Number : +66-818323858

Latest News from Gemstone Industry

Blue Sapphire from Kashmir - Do they still exist?

Introduction of Blue Sapphire

The beautiful birthstone of September, Sapphire, is the member of Corundum mineral family. Sapphire is available in so many different colors, but Blue color is the most fascinating color. You can garner the idea about its royalty that Prince Charles gave a Blue Sapphire engagement ring to Princess Diana. Such a romantic, charming and energetic gemstone a Blue Sapphire is.


Image Courtesy: Wiki Pictures

The sources of Sapphires are Madagascar, Sri Lanka, India, Thailand, China, North America, Australia, Afghanistan, Burma, Colombia, Cambodia, Kenya, Laos, Malawi, Nepal, Nigeria, Pakistan, Tajikistan, Tanzania, USA and Vietnam.

What are Kashmir Sapphires?

The heaven of India, Kashmir, is the place where classic Blue Sapphires are mined. Kashmiri Sapphires are the finest Sapphires. The mining of Blue Sapphire was on peak in Kashmir in the end of the 19th century and early of the 20th century. Now, Blue Sapphire from Kashmir is rare. The reasons are that the deposits of Blue Sapphires are dying out and Kashmir is the most dangerous place to mine.


Beautiful Kashmir Mountains


Image Courtesy: Pala Gems


Image Courtesy: Dreamers 2016

The quality of Blue Sapphire from Kashmir is the finest as the world record price per carat was auctioned at $ 180731 per carat in a ring and the whole Sapphire Ring was auctioned about $ 5 million in April 2014. The high end Blue Sapphire from Kashmir has very limited buyers because only high quality lovers buy it.


Image Courtesy: Greater Kashmir

The story behind the disputed area "Kashmir"

In Kashmir, Blue Sapphires were first discovered in 1880. Now, this Northwestern region of India is lying between India and Pakistan. There is a dispute on this beautiful region in between India and Pakistan. Most famous beautiful and sparkling Blue Sapphires deposits are located near Sumjam village which is controlled by India. The most recent purple Sapphires are found in Batakundi and Basil Region, which comes under Pakistan controlled Kashmir. Below the images 1 & 2 will clear picture in your mind.


Image 1: Courtesy - GIA


Image 2: Courtesy - GIA

Today, if the name Kashmir is associated with Blue Sapphire, then it will become a very strong selling tool. Kashmir Sapphires are sighted as exceptionally rare that bring the romance and the glory of a lost empire to mind. Indian politicians keep Kashmir Sapphire in their safe.

The market of Kashmir Blue Sapphire is very demanding. As it is very rare to find fine Blue Sapphire from Kashmir region, when any Blue Sapphire in big size is mined there, it goes for auction. Following table is showing some big Kashmir Blue Sapphires auction price in different locations.


Table Courtesy: Kashmir Blue

Kashmir Blue Sapphires are the most valuable of all Sapphires mined in the world. They have very high end targeted market that not everyone is able to buy it. It has very limited high end client list. Kashmir Blue Sapphire is also favorite gemstone of collectors who love to collect gemstones. The price range of Kashmir Blue Sapphire varies from $ 5000 to upto $ 50000 per carat. This price range is from low quality to high quality.

Navneet Gems and Minerals have some beautiful Kashmir Blue Sapphires in their stock. Pictures of few of them as follows:


      Carat Weight: 5.72

      Color: Velvety Cornflower Blue

      Cut: Faceted

      Shape: Oval


      Carat Weight: 2.33

      Color: Velvety Cornflower Blue

      Cut: Faceted

      Shape: Heart/Pear


      Carat Weight: 2.05

      Color: Royal Blue

      Cut: Faceted

      Shape: Cushion


      Carat Weight: 2.22

      Color: Deep Blue

      Cut: Faceted

      Shape: Emerald Cut/Octagonal

To buy Kashmir Blue Sapphire with certificate, you can contact to Navneet Gems and Minerals on info@navneetgems.com or you can call for enquiry or place your order on +66 – 818323858. You can also visit the store at:

Navneet Gems & Minerals Ltd.

919/326, Jewelry Trade Center (JTC), 26th Floor, Room Number 326, Silom, Bangrak, Bangkok, Thailand

Beautiful Kashmir Blue Sapphire earring.

Here are some questions people generally asked about Kashmir Blue Sapphires:

  1. Are Kashmir Blue Sapphires better than other Sapphires?
  2. Why Kashmir Blue Sapphires worth more than others?
  3. How we can know that the Sapphire is genuine?
  4. Why Kashmir Sapphires are rare?
  5. Are Kashmir Sapphires still available?

I hope all of the above questions are answered in this article. The answer of the last question is the conclusion of this article that the Kashmir Blue Sapphires are still available. They are available but not as common as other Sapphires. Their market is very limited and only high end consumers buy it. If you are interested to include Kashmir Blue Sapphire in your collection, then you can contact to Navneet Gems and Minerals on the contact details given above.

Posted on Saturday, May 24, 2014 - 21:14

Are you really buying Ruby or they are just Pink Sapphires?

Ruby and Pink Sapphire – they are from the same family of mineral, Corundum. They are chemically identical, but they are purely different from each other because of their color variations, availability and price. It is very hard to draw a link between them; you can check the following image for that:


Image Courtesy: Jewelry Secrets

Similarity between Ruby and Pink Sapphire:

  1. The hardness of Ruby and Pink Sapphire is same, which is 9 on the Mohs scale of hardness.
  2. The Refractive Index of both minerals is between 1.757 and 1.779.
  3. The specific gravity of Ruby and Pink Sapphire is same, which is 3.99 to 4.0.

The color of the Ruby and Pink Sapphire is the main difference between both the minerals. You can find Corundum in a wide variety of colors like pink, blue, red, green, yellow, black, white and almost every shade in between them. Conventionally, the red variety of Corundum is called Ruby, whereas all other shades are called Sapphire.

The red color in Ruby occurs because of the chromium impurity whereas the colors of Sapphire are the result of iron, titanium and chromium impurities. It is hard to find difference between Pink Sapphire and light Red Ruby. There are no specific rules that which shade of red represents Ruby and which shade of pink represents Sapphire. The color of Ruby varies from intense purple red to lighter orange red and the color of Pink Sapphire varies from hot pink to pale pink or more red.


Image: Pink Sapphires


Image: Red Ruby

What some unscrupulous sellers do, they sell these Pink Sapphires as light Red Ruby. The reason behind this is that Pink Sapphire is the less expensive in Corundum family. They do this job very frequently to the new consumers and people who have no knowledge about the gemstones. Pink Sapphire is quite reasonably priced than Ruby and more commonly mined. Though, fine Pink Sapphires are also rare, but fine Rubies in bigger size are rarer. Sellers sell Pink Sapphire as Rubies so that they can gain maximum profit. Ruby and Pink Sapphire looks alike, so, it will be easy for them to sell it to novice consumers. Though, people attract towards Pink Sapphire because they think that this is light Red Ruby and more affordable.


Image Courtesy: Pala Gems

Four of the above are the Corundum with same hue, which is red, but with different saturation and tone. If you see, you think that 3 and 4 are Rubies, as most of the sellers tell their customers. 1 classifies as Pink Sapphire and 2, light Red Ruby to some consumers and a rare Pink Sapphire to others. This above image clear all the variations in Pink Sapphire and sellers sell it as Ruby so they can warn good profit.

If you are going to buy Red Ruby, then you should be extra careful when buying it. You can ask for the originality certificate from the seller because real Rubies are very rare and expensive. They are dark red in color and Blood Red sometimes. The availability of both the minerals put a direct influence on their prices. Pink Sapphires are more common than Rubies and can be found in bigger size and nine times out of ten, Rubies are much higher priced than Pink Sapphires.

The color of these minerals is depending on the origin as well. The world’s finest Ruby is originated from Myanmar (Burma). Other than Myanmar – Thailand, Sri Lanka and Cambodia are the main sources where Ruby is mined. In the Burmese Ruby, there is a strong red fluorescence and long u. v. light. In the Thai Ruby, the color is darker red because of the presence of Ferrous (Iron), which produce brownish to purple overtone. Sri Lankan Rubies are typically more pinkish, which are referred as Pink Sapphire in some cases. Cambodian Rubies have same characteristics as Thai Rubies have.


Image: Ruby Crystal

Sri Lanka and Burma are the classic source for Pink Sapphire. But nowadays, Pink Sapphire is also mined in Africa from Madagascar and Tanzania. The concentration of chromium determines the depth of color and the traces of vanadium results violet tones in Pink Sapphire.

If you are a consumer and going to buy a Ruby, then you should be careful about what you are buying. You should check its beauty by analyzing its attractive color, brilliance and transparency. Then its quality which depends upon its color, clarity, cut and carat. These four Cs constitutes different shades of Red, inclusions, sharpness and size. And, last but not the least, its value. The value depends on that the Ruby is natural or synthetic, treated or not and what is its country of origin. You should keep all the things in your mind while going to but a true Ruby for you.


Image: Pink Sapphire Crystal

In general, Ruby and Pink Sapphire both are beautiful gemstones from Corundum. Chemically, both are same, but the percentage of chromium creates difference between them. The presence of chromium is higher than 0.9% in Ruby, whereas chromium presence is lower than 0.5% in Pink Sapphire. So, if you are not able to check this percentage, then you better ask for the genuinity certificate from the seller for both of the gemstones.


Image Courtesy: Navneet Gems

The metaphysical properties of Ruby and Pink Sapphire are also creates a big difference between them. Ruby is well known of intense passion and good luck, whereas Sapphire is associated with sincerity and divine knowledge. If Ruby protects you from misfortune, then Sapphire gives you blessings. People use Ruby as personal inspiration and Sapphire for faithfulness. If we talk about the classic birthstone, then Ruby is associated with the month of December and Sapphire is associated with April, whereas in modern context Ruby is the birthstone of July and Sapphire is September.

Posted on Tuesday, May 20, 2014 - 17:23

Wholesale manufacturer supplier of Sky, London and Swiss Blue topaz in Bangkok, Thailand

Are you looking for a reliable source of Blue topaz from Bangkok (Thailand) because your current source proves to be not stocking enough sizes and doesn’t meet your requirements?

You must read below if so, here is the following agenda for this page:

  • Introduction about Navneet Gems and Blue topaz
  • Ordering Process of Blue topaz with us
  • The process of Blue topaz we follow
  • Qualities of Blue Topaz we have
  • Different genres of "Blue Topaz" or shapes or cuttings
  • Why to buy Blue Topaz from us?

1. Introduction about Navneet Gems and Blue topaz - There are hundreds of supplier selling blue topaz but what makes Navneet Gems better than other suppliers; wholesale and competitive prices, all sizes and shapes stock availability, own manufacturing, huge and bulk production house and knowledgeable and multilingual staff.

Navneet Gems started its blue topaz's drive 18 years ago with two people and now have a staff of more than hundred people all around the world. We stock more than half million carats blue topaz (Swiss blue topaz, sky blue topaz and London blue topaz) at one point of time.

Here we are mentioning difference between buying from us and other companies -

 1. Everyone knows a reseller can not give you competitive prices and good quality stones because reseller always buy from a manufacturer and resale to other hands.

2. Example - if you are looking to buy 7x5mm ovals, 10mm rounds, 20 carats + free sizes and other sizes and shapes in swiss blue topaz then a reseller will able to only provide some sizes and shapes and will not able to accomplish all your requirements and charge you 20-30% higher prices whether a manufacturer like us will able to complete all your needs and charge you wholesale price so it’s better to skip hands and directly buying gemstones from a manufacturer.

3. Everyone wants to earn by business no one is seating for losing money, YES! its truth about business – if you go for a reseller than he will definitely add his own profit in his costing and further sell you at high prices.

SO its always good to buy gemstones directly from a manufacturer and stock holder to SAVE at least 20-30% of your money.  
2. Ordering Process of Blue topaz with us - There are two ways to ordering with us - 

A. Online blue topaz buying If you are seating thousand miles away from us and want to buy blue topaz gemstones from us then you can simply go to our contact us page listed in top red bar or from here and fill the contact us form mentioning your requirements, For better and fast assistance please make sure you write detail information regarding your requirements.

Example - I want to buy Swiss blue topaz Rounds 5mm, 6mm, 7mm and 8mm, 200 pieces in each and in AAA quality.
Above is just an example, if you have any query regarding buying lot, 10cts+ blue topaz or any other requirements then you can write according to you. We will get back to you in less than half an hour (In Bangkok working hours)

If you directly want to send mail then inbox us at navneet@navneetgems.com

B. Visit our office in Bangkok, Thailand - If you are in Bangkok, Thailand then there is no other best way then visiting us and directly buying from us, if any customer has problem to ship goods back to his country when staying in Thailand then we ship goods on our customers ‘address and provide them tracking number for express shipping.

In Thailand, our office is situated in heart of the Bangkok city. You can visit our office on this address -

  919/326, Jewelry Trade Center (JTC), 26th Floor, Room Number 326, Silom, Bangrak, Bangkok, Thailand

Our office is situated in next building to the Holiday inn hotel, sliom road, Bangkok, Thailand. You can see our Google map listing here to make it easier for you to find us - https://plus.google.com/108091976236463103771/about

 3. The process of Blue topaz we follow - Blue Topaz generally comes in three colors – Sky blue topaz (Lightest shade), Swiss blue topaz (More Strong to vivid medium dark blue color) and London blue topaz.

Swiss blue topaz and London Blue Topaz– Strong to vivid medium dark blue to dark blue color of topaz is electron irradiated followed by heating and cooling. Navneet Gems does not use neutron treatment and only use electron beam method by linear accelerators followed by heating and cooling to produce Swiss blue topaz. Our electron irradiated blue topaz is complete safe to wear, which doesn’t emit unsafe residual radiation.

 Our company is licensed by NRC (Nuclear Regulatory commission), In August, 2007 the NRC tested 9 batches of blue topaz which is irradiated averaging 500 carats on one and found that the topaz posed no health risk. Then a Fact Sheet on Irradiated Gemstones came in market for blue topaz seller and users to ensure the public that these gems were completely safe. You can also browse many questions answered by the NRC in Fact sheet.

In a general way there is limit of radiation that should be followed while producing this gemstone, if limit goes high then it is unsafe to wear.

 Sky blue topaz - It is not completely irradiated stone, it is just irradiated to brown and then heated. Color of this shade of blue topaz quite resembles to Aquamarine but this is quite low in prices when compared with Aquamarine. We have been manufacturing more than 50,000 carats sky blue topaz in all sizes and shapes in a month. Along with stones we have top sky blue topaz rough available for selling; we have availblity of 9 grams to 60 grams rough in sky blue topaz in top sky (baby swiss) blue topaz color.

 blue topaz rough

3. Qualities of Blue topaz we have -
Our quality for all blue topaz shades are AAA quality, please check here, our stones are well cut, polished, shaped and dimensioned. From pear, heart, octagon, marquise to round, oval, trillion, baguette we have available in stock anytime. Every stone manufactured from our unit is perfect in height, no shallow and no deep. Regularly height of our gem comes in range of 54-60% of length. If customer needs any specific height then we do it for him/her. Girdle of every stone is sharp, well finished and polished to make every piece elegant.

 blue topaz qualityOval swiss blue topaz

 Here is the video of Swiss blue Topaz stone from our stock


4. Different "genres" of blue topaz (Or shapes) - In this segment we will describe the genres based on two ways -

A. Shape wise   B. Cutting wise

A. Shape wise Blue Topaz - We have availability Rounds, Ovals, Octagons, Cushions, Marquise, Long Cushions, Trillion, Baguette, Hearts, Pears and Fancy shapes from 2mm to 20mm calibration sizes and free sizes as well. For price information you can send us required size and we will drop you the prices in your inbox within few hours. Please check some same pictures here -

Heartshape swiss blue topazcushion swiss blue topaz

B. Cutting wise blue topaz – Navneet Gems has been manufacturing and selling different cuttings like cabochons, faceted, briolettes, fancy, rose cut, diamond cut and concave cut. If customer has any special requirement then we cut it from rough or other available goods. For Example – A customer asks us for Portuguese cut in swiss blue topaz 10mm rounds then we make it for him by available goods in normal cut so basically we can cut all different cuttings, please see some sample pictures here -

swiss blue topaz cabochonsfancy swiss blue topaz

5. Why to buy Blue topaz from our companyEvery jewelry designer, reseller, retailer of blue topaz always look for a supplier who can provide consistent supply, quality gems, competitive prices, delivery on time, good after sales services and cheap shipping charges SO here is Navneet Gems for all those supplier seekers.

Most important thing is even color and maintained quality of gemstones that we provide to our buyers. We never had any bad experience with our customers except 2 cases of one day late delivery and that is acceptable in a 18 years long career.

So please visit our office or drop a mail on navneet@navneetgems.com regarding your requirements, we will reply you as soon as possible.  



Posted on Sunday, May 18, 2014 - 19:22

Different shades of Swiss blue topaz - really? Do they exist?

YES YES YES, in the market you are likely to find different colors of Swiss blue topaz.

  • I thought only Blue topaz had different colors, Swiss blue too?
  • What is Baby Swiss blue topaz?
  • What does Super Swiss blue topaz mean?
  • Difference and availability in the differet Swiss blue topaz
  • Upward or Downward treands of Swiss blue topaz shades

Well, this might be a tough question to answer as there is usually a very bias opinion about these type of issues in the market which are usually only seen by a trained eye. 

Here are the different types of Swiss blue topaz color available in the market. With us at Navneet Gems and Minerals you will only find; Super Swiss blue topaz and the normal Swiss blue topaz:

  • Baby Swiss blue topaz -This type of color is usually very abundant in the American gemstone market right now because of the issue with the irradiation and more importantly the price point of views in these mass market gemstones coming into play. This color of Swiss blue topaz is usually 20% - 30% less expensive than the normal stones because of the dose of treatment cost and also due to the market's perception when it comes to the color. But sometimes the Baby swiss blue topaz can look so natural and less "blingy" or "neony" and it gives a less glassy appearance which may in fact increase its demand for this type of color. This is one of the most prefered colors of Swiss blue topaz.  More of this Baby swiss blue topaz material is actually available in the market these days because of the rough quality and the color centers that the Irradiation process produces.

Swiss blue topaz Oval Baby color

  • The normal Swiss blue topaz - This color of Swiss blue topaz is what we produce for most of our consumers as this is the normal nice colored swiss blue topaz. People know this color as the norm in the industry. This is really what drives people insane but at the same time its what looks like the nearest color to glass in the European market. This material is starting to run out in the market, or atleast a hint od shortage for sure.

Swiss blue topaz trillions

  • Now the next color of Swiss blue topaz is Super Swiss blue topaz which is a very rare case where a few pieces give this super color, mostly due to the sparkle in the stone itself which gives it a deeper look also sometimes due to higher depth in the stones by having deeper heights of the stones which give them more color to them. To see the video of a Super Swiss blue topaz piece please check out this video from on our youtube channel here for Super Swiss blue topaz pieces.


Baby Swiss Blue Topaz    Normal Swiss Blue Topaz     Super Swiss Blue Topaz
Color  Top sky blue topaz color Normal Ocean Blue color Intense, more Neony like Paraibas'
Availability Medium & Increasing High & Decreasing Low & Decreasing
Market type Mass Market Mass market High end retail market
Price $1.75-$3.50 / carat $2 - $5 / carat $5 - $20 / carat
Posted on Sunday, May 18, 2014 - 13:37

Buying Guide for Semi Precious Stones from Jaipur, Rajasthan (India)

If you wonder how difficult it is to buy Semi precious stones from Jaipur and how to get around to get the best deals in the city, this guide is for you. We give this guide away because we ourselves have an office in the center of Jaipur where our manufacturings take place.

Obstacle #1: Getting to Jaipur

It isnt the easiest of jobs to do. Because of the poor insfrastructure from any International city in India to Jaipur, it makes it easier to just take a flight but taking a flight can have its own obstacles. 

Taking the flight: The closest place to fly from is New Delhi (Capital city of India). The big obstacle is that the Jaipur International airport is quite small and not very "classy", and sometimes a little unsafe to land (usually due to foggy weather or rainy ground). The ticket usually costs around $100-$150 with the duration of only 30 minutes - 45 minutes but waiting time in Delhi might be long.

Taking the train: This is the second best way to travel to the city of Gems from Delhi, this route recently has upbrought very new oportunities as the rail systems have been less corrupted, and actual investment has actually gone into train systems. This really is a very inexpensive ride of about 15$-20$ per person in an airconditioned train with breakfast. The duration is around 4 hours - 5 hours.

Delhi to Jaipur

Obstacle #2: Getting in touch with the right people for sourcing

If you think getting there was a difficult reach, then Buying in Jaipur is one of the most difficult parts of the whole trip. It just started and got a ton more interesting, thats what is the best part of this place, adventure.

Jaipur gemstones street market

Its very important to do the homework right, in order to get in touch with the right people you need to initially screen the dealers that dont understand your requirements and are sending junk photos of gemstones and jewellery you are just not interested in. Once you have done the screening right, then you need to make sure you get their contact addresses down. Once you have landed in Jaipur or driven there, you should call them all individually and make an appointment with them. Make sure to reach 30 minutes later then what the dealer/wholeseller/manufacturer/broker has promised, thats how it works, you have to make the supplier wait for you and not the other way around (We will learn later how this helps in bargaining)

If you dont have any contacts then simple contact us, we'll hook you up with some good brokers and you could ofcourse walk down the Semi precious stones market in Jaipur as the picture below:

Obstacle #3: Judging quality and people

In order to just the quality of the stones, its very important to have the lighting that best "shows" the real color and the right quality. Obviously seeing emeralds in yellow background for example will give the buyer a "deceptive" quality image about its inclusions. So make sure you go out of the box, go out in the sun if possible.

Jaipur gemstones

I know this may sound wierd but judging people is very important. Its very important to see if the people who you are going to make all or alot of your Gemstones purchases with have the right intentions and have a clean heart. Because if they dont, then in Semi precious stones its very easy to put fake Amethysts in a parcel of Genuine Amethysts by as much as 50% and you wont even realize it. You should test the supplier in your own ways (By asking for prices and narrating bullshit stories and see their reactions).

Obstacle #4: Pricing (Bargaining)

This is where your culture of barganing where the seller says "Thats my final price" and it ends there? Not in Jaipur. You go on and on, but if you dont want to sound very cheap or if it goes against your ego then tell the seller the price you can buy it which is usually atleast 50% less than what the seller initially quotes. But todays market, the bargains are starting to slip down on % values. This is because of a tighter supplier of stones where market is getting tighter and production low.

Some tips to make sure you follow when you are price bargaining:

  • Try to have a broker in the middle of you and the seller (We provide broker services too if you need any where the broker will take you to good sellers directly)
  • Never give a positive or optimistic look about the gemstones that the seller is selling. 
  • Never ask for "How much is this"? Let the seller bring it up, try to be a litle busy with your phone or take pictures or go through other pictures of the same items you may from your previous seller. And try to give a negative feedback saying the quality you are looking for is better. If not, then the first questions should be "Do you have better quality than this"? This tells the seller that you are very interested (Even if you are and trust me dont be afraid he will usually not put the semi precious stones away in his bag as he would like to sell them for you
  • Lets say you have a lot of 1000 cts of Rainbow blue moonstone in front of you, dont say you would like to buy it all. Say you want to buy half of it and ask for the price if you have to. Then if the seller says 20 rupees per carat. Dont give a very strong reaction, be as neutral as possible.
  • When the price has been finalized, pretend you thought the buyer and you have communicated for 3 months terms. Just pretend. Its never bad to try. I know this may sound very different and may not suit but this is my experience from 5 years of consistent sitting at our manufacturing where our brokers sometimes bring items at such conditions and I have learnt these from trial and error.

Obstacle #5: Shipping the stones out of the country (Exporting)

The best way to get it shipped is tell the seller to ship the stones to your address, make sure to take a tracking number form the seller. 

If you are planning on a trip to Jaipur to buy Wholesale semi precious stones from a manufacturer in Jaipur, please inform us and we will make sure to set up a meeting. And if you need any other services please email me at navneet@navneetgems.com

Posted on Saturday, May 17, 2014 - 12:48

Loose Wholesale Swiss Blue Topaz supplier Bangkok, Thailand at wholesale prices

In the running gemstone market one who is manufacturer and expertise of that particular gemstone can give you cheap prices and fine quality because of wholesale production, So we are manufacturer of BLUE TOPAZ, running our own production unit in Thailand. At a time we stock more than 1 million carats blue topaz (Swiss, Sky and London) including cabochons, faceted, briolettes, checkerboard, rose cut and different shapes as well. 1 million carats BLUE TOPAZ, YES WE HAVE! We are one of the companies who is manufacturing and selling Blue Topaz in such quantities. Keep scrolling to know more interesting news about blue topaz and Navneet Gems -

  • Manufacturing in wholesale quantities
  • Available stock in every size and shape
  • Thailand cutting of blue topaz
  • How to reach us to buy blue topaz?

Manufacturing in wholesale quantities - In today's gems market if you are buying from a reseller then he definately going to charge 20-30% higher prices than manufacturer. What if you directly buy from a manufacturer? Yes you can SAVE 20% and get 20% lower prices. We manufacture swiss blue in a large quantities.

Available stock in every size and shape - We stock almost every size and shape in swiss blue topaz gemstones and according to requirement we take out goods and ship on the same day, this makes easy for us to supply goods.

swiss blue topaz shapes

Thailand cutting of Swiss blue topaz - Maximum of our stock in this gemstone is cut in our Thailand situated manufacturing unit. Our experts’ Thai cutter work efficiently and meticulously. We also have our factory in Jaipur, Thailand but we are not cutting swiss blue topaz there because Indian labors is not so that efficient that Thai labors are.

Every piece of our gemstones is cut in a way that you can see every facet clearly. Our experienced team has instructed to all gems ‘cutters to follow gem cut/shape factor, girdle thickness, culet size, table percentage or size, crown height etc. and they do that in a perfect manner.

swiss blue topaz shapes

How to reach us to buy Blue Topaz?- Science has made communication and things so easy that now you can get everything in your hands just clicking few keyboards buttons :) :)
Yeah! so simply you can drop us a mail on navneet@navneetgems.com or fill contact us form on contact us page to send us a inquiry.
We have our office in Bangkok, Thailand, in case you are in Bangkok then visit and buy gemstones directly from office.

Posted on Friday, May 16, 2014 - 16:01

Tourmaline – An Investment

Generally, Real Estate, Gold or other precious metals are entitled best for investment purpose. To earn big profits, you need to invest big. But, there are other reasonable alternatives too. Raw, uncut gems offer good returns for your investment. Tourmaline is the best option for that. You will find millions of reasons why Tourmaline crystals are considered a hedge bet.

Here are some of the reasons:

  1. Tourmaline crystals are exceptional and striking as an article of trade, as shown in the image below. Apparently, they are not as rare as diamonds; gem Tourmaline is harder to come by than amethyst or aquamarine.


  1. You can find a market exists for both raw and finished gemstones.
  2. There is a massive requirement of Tourmaline in Chinese market. There is a big consumption of Tourmaline in Chinese market. The requirement of gem set jewelry is increasing in the Chinese market, which leads its market size to touch $ 50 billion by 2015.


Image source: GIA

  1. Lab imitation of Tourmaline is not possible, which is another good reason to invest in Tourmaline. It is mined all over the world. Sri Lanka, Brazil, Southwest Africa, South Africa, Mozambique, Kenya, Zimbabwe, Nigeria, Madagascar, Tanzania, Pakistan, Afghanistan, Utah and USA.
  2. The gemstone Tourmaline is quite difficult to "colorize" than other gemstones. The multicolor effect of Tourmaline, which is also known as Rainbow color effect, makes it special and it is available in a wide variety of colors.


Image: Rainbow Tourmaline Crystal

  1. Tourmaline is the best replacement of Sapphires. As we all know that Sapphires are getting expensive day by day, Tourmaline is in reach and getting hike in its price. So, this is the best time to invest in Tourmaline.


Image Source: Navneet Gems

  1. If you convert a rough gemstone to a cut stone, it can significantly plus market value of a gemstone for a sensible small investment. It’s not like that I advocate this, but this is also one of the reasons, which helps the rough gemstones to get appreciation.
  2. Tourmaline is also getting very good response in the market because of its rarity - both naturally and artificially. The cutting – grade pieces are of Tourmaline are harder to find in nature. Cutting stones eliminates even more material from the natural level making natural "cutters" even rarer.

The heat treatment or radiation treatment can wreck a fine bicolor Tourmaline. These processes have a propensity for lighten the color, which is often the exact opposite of what you want with Tourmaline.


All of this above put in to the wrangle that holding raw "cutter" Tourmalines as a transitional to enduring investment a good idea. What I recommend to you to invest, the raw stones. The reason is that it is quite easy to settle on good material from altered in the rough form – often with matrix rock attached. You can give a desired cut to the stone or left it as it is which is also appreciated. Your investment could be more effective if you buy your Tourmaline smartly. You can choose a primary source like a miner or a reasonable secondary source i.e. first – level reseller.

You can get a good supply from louse markets sometimes, but you should have to be extra assiduous while buying Tourmaline from the reseller. I suggest you to spend some time to research about the stone and probe to find good dependable sources. You can start with a few small purchases to get to know the seller. And incidentally, there is another reason why I think investing in Tourmalines is a good opportunity; it is a lot of fun!

I believe that economic ups and downs are often, so, we should be prepared for that. I think of my own Tourmaline investment as a hedge, so if the dollar or my other investments are doing well, the price of Tourmaline may be spongy, but that is okay for me. The real investment value of Tourmaline comes into play when the dollar is down.

I found so many reasons to compare Tourmaline prices with other precious gemstones like Sapphire in the commodity market, but there are some pretty noteworthy differences, which are as follows:

  1. Tourmaline has low RI and to the extent that I know, if it is heated or nuked, a lab cannot detect this treatment. Whereas, Sapphires are almost treated, diffused or synthesized. It is very rare to find a natural Sapphire and it is quite expensive as well.
  2. Tourmaline has the hardness 7 to 7.5 on the Mohs scale of hardness while Sapphire is the third hardest gemstone having 9 on the Mohs scale. So, Sapphire is durable but it is not like that Tourmaline is fragile. It is less durable than Sapphire.
  3. You can find Tourmaline in large size, which is a very good reason to invest in Tourmaline and it is affordable. Sapphire mostly found in small size, but if you want Sapphire in large size, then you should set your mind to pay a very good amount for that. They are quite expensive.
  4. Sapphire has a great luster and sparkle in it, but Tourmaline is also has a fine luster in it which makes it a good replacement of Sapphire.


Different colors of Tourmaline

Tourmaline and Sapphire, both are pleochroic, which means if you move both in different directions, they can show different colors. Tourmaline has strong pleochroism than Sapphire. So, if you think that you are not able to buy Sapphire, then Tourmaline is the best replacement to wear and for investment as well.

Posted on Friday, May 16, 2014 - 13:02

Buy loose wholsale Garnet - Pyrope, almandite, seppessartite, grassulrite, demontoid and rhodolite

Garnet is one of the gemstones which come in more than five colors. In gemstone industry, garnet family is largest and varied, with species ranging from the red colored almandite, pyrope to the emerald substitute green tsavorite and orange-reddish spessartite.

You are going to read about these in this article -
1. Why different garnet species come under this category?
2. Difference between pyrope and almandine garnet?
3. Difference between hessonite and spessartite?
4. Difference between almandine, pyrope, hessonite and seppessartite garnet?

Garnet species are different in color but comes under one category, why?
Different garnets (Almandine, pyrope, tsavorite, spessartite, demantoid, grassularite and rhodolite) have common crystal structure but different chemical composition, that’s why all these are kept under one category.

Here are some basic sub division of garnets type based on color –
Almandine , Pyrope – Red Colored
Seppessartite and Hessonite – Orange- Red
Grassularite, Tsavorite – Green colored
Demantoid – Greenish- Gold
Rhodolite – Pink colored (Mixture of pyrope and almandite by compostion)

Pyrope Garnet information
Pyrope Garnet Colour - It is also called "Indian Garnet". This color of garnet comes dark red with red luster in small sizes but in big sizes this color goes black and does not look good. For example if you buy 7x5 ovals of pyrope garnet then you will get good color dark reddish but if you go for 15x8 Ovals pyrope then you will get blackish-red.

Pyrope Garnet Clarity and Lustre - Pyrope garnet comes inclusion free, so buyers should go for "eye clean" quality. Pyrope garnets have nice luster.

Pyrope Garnet Cut and Shape - This stones comes in vareity of shapes and cutting; faceted, cabochons etc.

Pyrope Garnet treatment - Pyrope garnet is complete natural.

Pyrope Garnet

Almandine Garnet information -

Almandine Color -
Almandine garnet comes in pure red, orangish-red, browish-red. Deep red color in almandine is most valuable and most desired also.

Almandine Clarity, luster, cut and shape
Gem quality almandine garnet is semi transperent. Most of the almandine garnet rough come opaque and do not come in gem cut quality, mostly cabochons are made of this quality of garnet. In Almadine small to medium sizes are faceted and big sizes are cabochons, in this species some garnets cabocons can display star or asterism effect.

Almandine Treatment
This type of garnet is complete natural, not treated in any way.

Almandite garnet stones

Spessartite Garnet -

Spessartite Colour -
Color is  spessartite garnet is yellow to orange-red. Reddish-orange is most poplular color, sometimes also referred as "mandarin spessartite.

Spessartite Clarity, Lustre, cut and shape -
It comes with transperant to translucent and eye clean quality. It comes with high refreactive index and good luster. It is cut both in cut and cabochons. It comes more priced than almandine and pyrope garnet because it is more rarer than all above two.

seppesartite garnet

Hessonite Garnet

Hessonite Color -
This comes in deep yellow and cinnamon brown color . This one is more higher in prices than spessartite, pyrope and almandine garnet. It come swith small honey colored inclsuions. Bright golden-orangish color is more popluar in this.
Hessonite Garnet Clarity, Luster, cut and shape -

In this type cushions, ovals are most common shapes, rounds, emerald cuts are also in run. This stone is transperent to opaque stone. Normally inclsuion of honey colored comes in this.
Hessonite Garnet Treatment -
This is complete natural, not any enhancement is implemented on this.

hessonite garnet

Difference chart between different species of garnet is here-

Also called Indian

Color Dark Red Orange-Red
Luster Fine less than
Fine  Fine
Hardness and
Ref. Index
 Good  Good  Good  Good
Can cut in
Faceted &
Faceted &

Faceted &

Posted on Thursday, May 15, 2014 - 15:50

Different Rubies from different Origins

If you are talking about love and vigor, ardor and power, then which color you would associate with it on impulse? It's Red, isn't it? We associate love with the color Red. It exudes warmth and a strong sense of vivacity. The interesting thing is that the color of Ruby is also red. Ruby is also called the king of gemstones.

Ruby is the undisputed ruler of the gemstones in this enthralling world. Ruby has been considered as one of four most valuable gemstones on the Earth for thousands of years. Its glorious color, admirable hardness and exceptional brilliance make Ruby a precious gemstone. Because fine quality of Ruby is extremely rare, it’s an added advantage which makes it valuable.

The member of Corundum mineral family, Ruby is a pink or blood-red gemstone. The hardness of 9 on the Mohs scale of hardness keeps it stand among the hardest gemstones. Rubies are mined in different places and sometimes people confused that which Ruby is pure and more valuable. If its ostensible powers are now the matter of apocryphal folklore, Ruby today is still esteemed for its beauty and scarcity. A key aspect affecting the value of Ruby is the country of origin and in some cases the precise region from which the stone obtains.

Rubies have historically been mined in Thailand, Cambodia, Burma, India, Afghanistan, Pakistan, Sri Lanka, Tanzania, Madagascar, Vietnam, Nepal, Tajikistan, U.S. states of Montana, North Carolina, South Carolina, Wyoming, Greenland, Republic of Macedonia (is the only country in mainland Europe to have naturally occurring rubies), Macedonian ruby has a unique raspberry color, Waseges River area of Kenya and Mozambique.

The red of Ruby depends on the different origins. As we know that the Ruby is the member of Corundum family, the natural and pure Corundum is colorless. Some elements like iron, chrome, vanadium or titanium are responsible for its color. This is also a fact that only Red Corundum is entitled to be called Ruby.

The Mogok valley in upper Burma (Myanmar) is the main source of Rubies in the world from centuries. Burmese Rubies are the most popular in the world because of their color. They are darker in the color which is known as “Pigeon Blood Red” color. These rubies are really really pricey and high end usually, still wondering why prices are so high for Ruby?


Ruby Crystal from Mogok Valley

When you talk about the classical country of origin for Ruby, then India is the name which is regarded for a long time. You can find an affluent stock up of knowledge about gemstones in Indian literature. This knowledge has been stored over a period of more than two thousand years. Even the term “Corundum” is a derivative from the Sanskrit word 'kuruvinda'. “Ratnaraj” is the Sanskrit word for Ruby. It means “king of the gemstones”, which is above all and it used to be prepare as a royal welcome. The ruler sent high personage out to welcome the precious gemstone in appropriate style, whenever a particularly Ruby crystal was found.


Indian Ruby Crystal


Different shades of Indian Ruby

Mozambique Ruby is also known as Montepuez Ruby. Business quality rough Rubies from Montepuez are generally heated with borax or other flux-like additives, and since the cavities are healed before faceting, larger faceted stones result. Thus flux heated Mozambique rubies of larger sizes (commonly up to 10+ carats) are more readily available in the market than unheated rubies.

The physical properties of the 4 samples of Rubies from Mozambique:

The gemological properties of the samples are summarized in table 1. The refractive indices obtained varied between 1.761 to 1.763 for ne and 1.770 to 1.771 for no with a birefringence ranging between 0.008 and 0.009.

Table 1: Properties of Rubies showing R. I. and S. G. values, reaction through the Chelsea color filter and LWUV/SWUV reactions:







Chelsea filter








Strong Red







Medium to Strong Red







Strong Red







Weak to Medium Red



 Table 2: Introduction to the 4 selected Rubies from Mozambique:


Sample Category & Origin

Wafer Weight (Carats)

Polished Wafer Orientation

Wafer Path Length

Color (Transmitted Light) along C-axis


A1 – “Central”

0.642 Carat

Perpendicular to C- Axis

2.648 mm

Purplish Red


A2 – “Glass”

0.133 Carat

Perpendicular to C- Axis 

0.702 mm



A2 – “Nova Mina”/”Maninge Nice”

0.078 Carat

Perpendicular to C- Axis 

0.590 mm

Purplish Pink


B2 – “Torro”

0.066 Carats

Perpendicular and Parallel to C-Axis

0.510 mm

Brownish Pink



Reference No: 100305163907


Reference No: 100305163897


Reference No: 100305163945


Reference No: 100305164174

Conclusion: Difference between Mogok Ruby, Ruby from India and Mozambique Ruby:

Passionate pinkish Red Rubies are mined in Burma, which are almost electric in color. Most of the Rubies from Burma have a burly fluorescence when exposed to ultraviolet rays like those in sunlight. In India, the Ruby deposits occur in metamorphosed limestone (marble). Rubies from Mozambique are semi-translucent, which can be illustrated as subhedral Ruby crystal snuggled in a milieu of white calcite/dolomite marble, dotted with pseudo-hexagonal books of muscovite. They are very strongly fluorescent displaying bright red with LWUV, and weaker red with SWUV.

I hope you would like to watch the following video in which you can see the Ruby Crystal from India.

Natural Rubies are rare in the market and you should be extra careful when you are going to buy Ruby. Always ask about the origin of the Ruby and do not forget to ask about the treatment if the Ruby you are buying is treated or not.

Photos and Videos of the 3 most common Ruby Origins:

Burma Ruby

    Pigeoon Red ruby from Burma Burma ruby pair

Videos: https://www.youtube.com/watch?v=9ZuI_YFfWi8

Mozambique Ruby

mozambique ruby rough  mozambique ruby stonesRuby from Mozambique


Video: https://www.youtube.com/watch?v=t9LQ4QxBDEw, https://www.youtube.com/watch?v=q9eP48K_mp0

Thailand Ruby

Thai Ruby Ruby from Thailand



Posted on Saturday, May 10, 2014 - 12:03