Everything you need to know about moonstone. All this information is written by graduate gemologist from GIA. Read everything about origin, sizes, shapes, qualities and price information.
What are Moonstones? Details about chemical structure and group? Origin and mines?
Moonstone is the world famous gemstone, a type of orthoclase feldspar. It comes in many colors like blue, grey, white, orange, brown and chocolaty with transparent to opaque quality. Optical property of this gem is special, it shows different sheen under different lighting conditions and gem experts name it as ‘adularesence’. Kalsi3O8 is chemical formula for this stone with monoclinic crystal structure, 6-6.5 hardness on Mohs scale and 1.1518 to 1.526 RI. Mines of this stones are in different countries, Sri Lanka and India are famous for blue and rainbow moonstone mines and Burma, Norway and Brazil are famous for other colors as mentioned above.
Why you should choose us? What we are manufacturing?
NGM has direct supply of these Moonstones from the source, where the mining takes place. This give us an competitive advantage over companies who re-sell. Our manufacturing in India and Thailand gives us efficiency and thus better prices along with the shine in these Moonstones, usually referred to as the star. And of course our Company and Staff will give you the best service we possibly can.
Moonstone can come in many sizes and shapes like most other stones. This easily available stone is amongst the favorite of Jewellers’ list because of this reason. It is available in calibration in huge quantities and as Freesize too! The freesize moonstones are used mostly in One-stone-Pendants, which are non-replaceable as each one has a unique size and the calibration sizes (Rounds, Pears, etc) are used most in Bracelets and Earrings.
What are the other names of this gem? What are the reasons behind the fascinating blue sheen?
Many times our customers who are curious to know about gems, ask us about adularescence and scientific reason behind it. This blue light is caused by interference, diffraction and diffusion phenomenon of light by very less concentrations within the stone. On black background blue sheen appears at its best. A complete transparent big size over 15 carats piece with blue sheen all over the stone is very rare and high in prices. Astronauts from America landed on moon July 20, 1939 and later in 1970 Moonstones were declared the gemstone of Florida.
Moonstone Cabochons and Beads -
We specialize in moonstone cabochons from 2mm to 25mm calibration and free size, normal to good quality in all colors. We source blue moonstone rough from Sri Lanka and India and cut it in our factories in India and Thailand. We keep regular order sizes in stock like 6mm, 8mm, 10mm, 12mm rounds, 6×4, 7×5, 8×6 and 10×8 ovals although we make also on order and take one week to complete the production. By seeing the distinct markets of moonstone in sliver, gold and low quality to high end jewelry, we supply different qualities to our customers. Faceted stones are hardly used in this stone because blue sheen goods at its best in cabs. Smooth beads and bracelets are also very famous and widely used and we also produce these.
Moonstone of different colors and varieties -
Blue and rainbow moonstone – This type is different from all other opaque moonstones, this comes with transparent to translucent quality. Indian material comes with rainbow firing and Sri Lankan material comes in blue firing. Sri Lankan mines have low to high quality material but high quality (Completely transparent with sheen all over the stone) is depleting now that’s why prices has been increased due to low supply. Most ofsilver jewelry manufacturers use medium quality material with medium clouds and blue sheen because it comes in low and affordable price range. When we talk about Indian moonstone then it quite resembles Sri Lankan one, only difference is that Indian quality has rainbow sheen instead of blue. In market both are categorized in same category.
In below mentioned chart we have shown different qualities of blie moonstone cabochons. A, AA, AAA and Gem. We have mentioned opening and basic prices, next depends on sizes, shapes and quality. We are producing both calibrated and free size blue moonstone cabs. In A quality comes with full of clouds and very low blue sheen (sometimes not even seen) and next AA quality it comes with normal firing and transparency. In AAA and Gem quality you can see the nice blue firing and good transparency level.
Free and big size moonstone rainbow and blue are high in trend and used in jewelry (ring, pendants and bracelets). In the recent few months, prices for moonstone have increased and top quality material is not easily available. There is no exact starting and ending price for moonstone. If you are looking for 0.08 usd per kg then it is also available and on the other hand if you want 200 usd per gram then that is also available. 300 usd per kg to 900 usd per kg quality are preferred by most of the buyers.
Grey, Orange, Camel, white, off white, pale yellow and other colors – This one is second type in which all opaque types occur. All these come with nice shining and give magnificent effect under light. In this we also have calibrated rounds, ovals, squares and others and free size big pieces also. It starts with 0.40$ per carat and next price depends on sizes and quantities you buy. In this stone prices remains same for all colors except blue and rainbow moonsotne. If you need micro setting gems then we also produce that in large quantities. Many customers of ours had settings and ask us for moonstone for particular height which can fit in those settings and we can for them.
Blue and Rainbow Moonstone big size pieces. All these Moonstones are from our unique Gems collection. Have a close look of those Cabs and you will see a story inside the blue shine. Its strange but true.
Contact us for blue moonstone in all calibration to free sizes -We have shown rounds in above pictures but we have been manufacturing all shapes in different colors. If you have any particular shape, design and quality in mind then you can send us picture and dimension and we will exactly same design stones for you. Simply send us an email mentioned in contact us form or fill inquiry form with your requirements (Sizes, shapes, quality and quantities), we will reply you back within few hours with prices, pictures and quality description.
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