GRA certificates explained
Every moissanite sold by Brilliani comes with a GRA certificate. Here is what that means, what it tells you, and how to verify it yourself.
An independent gemological institute
The Gemological Research Association (GRA) is an independent institute that tests and certifies moissanite stones. A GRA certificate is issued after laboratory analysis and confirms that the stone is genuine moissanite. Not a simulant, not cubic zirconia, not glass.
Stone type: confirms genuine moissanite (silicon carbide)
Carat weight
Measurements: length × width × depth in mm
Cut grade
Colour grade
Unique certificate number for independent verification
“A certificate is only worth something if you can check it yourself. That’s why we include the number, and that’s why we only sell GRA-certified moissanite.”
Check it yourself
Your GRA certificate number is printed on the card that comes with your order. You can verify it directly on the GRA website using that number. If the number matches, the stone is genuine.
The moissanite market has a counterfeit problem
Cubic zirconia simulants are sold as moissanite at similar price points. Often there is no certificate at all, or one that cannot be independently verified. A GRA certificate closes that gap.