What Is Moissanite?｜Brilliance to Rival Diamond & the GRA Report
GEMSTONE GUIDE
What Is Moissanite — A Brilliance That Rivals Diamond
LAB-GROWN · BRILLIANCE · GRA CERTIFIED
A brilliance that rivals diamond — and by some measures, surpasses it. Moissanite is a new generation of gemstone, created in the laboratory. From what it really is, to how it differs from diamond, to the GRA report that comes with every stone — here it is, alongside SMUK's collection.
About the Stone
About the Stone
Moissanite is a gemstone made mainly of silicon carbide. It was named after the French chemist Henri Moissan, who discovered its crystals in a meteorite impact site in 1893. Natural moissanite exists only in tiny amounts, in meteorites and the like, so what circulates as jewelry is almost entirely lab-grown.
Lab-grown does not mean lesser quality. If anything, growing in a controlled environment produces a stone with high clarity and consistent brilliance. With less environmental impact than mining and a more accessible price, it's a sustainable, honest choice for a new era.
How It Differs from Diamond
Moissanite & Diamond
Moissanite is known for having stronger "fire" (dispersion) than diamond — the rainbow flashes of color. Its refractive index is also high, so it sparkles more flamboyantly, in rainbow hues, under light. At Mohs hardness 9.25 it is very hard (diamond is 10), with more than enough durability for everyday wear.
| Hardness | Moissanite 9.25 / Diamond 10 (Mohs) |
| Fire | Higher dispersion — stronger rainbow brilliance |
| Origin | Lab-grown (low environmental impact, ethical) |
| Price | More accessible, even at the same visible size |
About the GRA Report
GRA Certificate
SMUK's moissanite comes with a GRA report (GRA Moissanite Report). GRA is a third-party body specializing in evaluating moissanite, issuing a report with grades for cut, color and clarity, along with a unique warranty number. The number is registered at issue and can be checked on the official site, so you can confirm the report matches the database.
* The GRA report and warranty number shown are a sample image. Each report is issued with a unique number per stone, and differs from the one you receive.
The report accompanies stones of 1 carat and above. Since SMUK's moissanite necklaces are all about 1.0ct, they ship with the GRA report — so you can choose with confidence, including as a gift for someone dear.
Collection
SMUK's Moissanite Collection
Silver 925 with rhodium plating, set with a single ~1.0ct moissanite. All come with a GRA report. Choose from two cuts, each with its own character of light.
Necklace ｜ Two Cuts to Choose
A brilliance born in the laboratory — honest and dazzling. May it be a stone that's with you on the special days, and the everyday ones too.
Related Reading
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