Charles & Colvard
 

Moissanite Jewelry

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Moissanite Diamonds
If you don't see it here, email us for pricing on other sizes/shapes.

Best Prices on the net.  Click pictures for prices
Round loose moissanite diamond

 round.gif (3293 bytes)Round Brilliant Cut  - Other sizes by special order email for pricing.
STOCK SIZES                                                                                           LOWEST PRICES ANYWHERE!

 marquis.gif (2563 bytes) Marquis Cut   - Other sizes by special order email for pricing.
Stock sizes

 cusion.gif (3351 bytes)Cushion Cut  - Other sizes by special order email for pricing.
Stock sizes

  radiant.gif (2651 bytes) Radiant / Emerald Cut  Other sizes by special order email for pricing.
Stock sizes

 oval.gif (2311 bytes)Oval Cut - - Other sizes by special order email for pricing.
Stock sizes

 pear.gif (1106 bytes) Pear Cut  - - Other sizes by special order email for pricing.
Stock sizes

 heart.gif (2680 bytes)  Heart Cut - - Other sizes by special order email for pricing.
Special order

 trillion.jpg (1834 bytes) Trillion Cut   (triangle, slightly curved sides, rounded tips) - Other sizes by special order email for pricing.
Special order

 princess.gif (2711 bytes) Princess / Square Brilliant - Available by special order email for Ordering.

Other sizes are available only by prepaid, special order & are NOT returnable. Please email for prices.
These stones may have a noticeable darker, and/or yellow or greenish tint.

All of our moissanite diamonds are hand-picked from "parcel" selections,
from which only the nicest, best quality diamonds are chosen...
Round stones seem to be more consistent & generally "appear" slightly whiter than fancy cuts.


  All stones come with a Certificate of Authenticity & Guarantee  from Charles & Colvard

Moissanite


From Wikipedia, the free encyclopedia

 

Moissanite Diamonds are a trade name given to silicon carbide (chemical formula SiC) for use in the gem business. As a gemstone, silicon carbide is similar to diamond in several important ways: it is transparent and extremely hard (9 1/4 on the Mohs scale, compared to 10 for diamond), with an index of refraction between 2.65 and 2.69 (compared to 2.42 for diamond). SiC has a hexagonal crystalline structure.

Naturally occurring moissanite is extremely rare, as it is not formed naturally in any quantity within the Earth, and thus is found only in tiny quantities in certain types of meteorite and as microscopic traces in corundum deposits and kimberlite. Virtually all of the silicon carbide sold in the world, including moissanite gemstones, is synthetic. Natural moissanite was first found in 1905 as a small component of a meteorite in Arizona by Dr. Ferdinand Henri Moissan, after whom the material is named in the gem market. Synthetic silicon carbide has been known since 1892, when it was first produced by Eugene G. Acheson in his newly invented resistance furnace. Acheson named the material carborundum by analogy to corundum, another very hard substance (9 on the Mohs scale). Moissan's discovery of naturally occurring SiC was disputed at first due to the potential for contamination of his sample by silicon carbide saw blades that were already on the market at that time.

In 1998 C3, Inc. (Charles and Colvard), a subsidiary of Cree Research, Inc., introduced gem-quality synthetic silicon carbide onto the market under the name "moissanite," marketing it as a lower-cost alternative to diamond. For example, a 1 carat moissanite gem sells for about $600 (2005 USD), while a diamond of similar size and color typically runs for upwards of $4500. Synthetic moissonite is approximately as hard as diamond, with a slightly higher index of refraction and greater dispersion; these qualities make SiC a decent and durable diamond simulant. It is interesting to note that the higher dispersion and index of refraction means moissanite has more fire and brilliance than diamond.

While some properties of moissanite are closer to diamond than those of cubic zirconia, another synthetic diamond simulant, once its properties are known moissanite is perhaps even easier to identify. Jewellers were at first fooled by moissanite's thermal conductivity which approximates that of diamond, rendering older thermal testers useless; what worked with cubic zirconia did not work with moissanite.

Moissanite is harder than cubic zirconia (9 1/4 vs. 8 1/2), lighter (SG 3.33 vs. 5.6), and much more resistant to heat. This results in a stone of higher lustre, sharper facets and good resilience: loose moissanite diamonds may be placed directly into ring moulds, the stones remain undamaged from temperatures up to twice the 900C melting point of 18k gold.