What Is GRA Certified Moissanite? A Simple Guide

If you have shopped for moissanite jewellery, you have probably seen the term “GRA certified.” But what does it actually mean, and how much should it influence your purchase? Here is a clear, no-jargon explanation.

What is a GRA certificate?

GRA (Gemological Roundtable of America) is a laboratory that issues reports documenting the characteristics of a moissanite stone. A GRA report typically confirms the stone’s shape, measurements, carat weight, cut, colour grade and clarity grade. Think of it as a record card that describes exactly what your stone is.

What does a GRA report tell you?

• Colour — premium moissanite is graded D, the highest, completely colourless grade.
• Clarity — top stones are VVS1, meaning they are eye-clean with virtually no inclusions.
• Cut, shape and measurements — round, oval, cushion and more, with exact dimensions.
• Carat weight — the size of the stone.

Every stone in our GRA-certified moissanite collection is D colour, VVS1 clarity and ships with its matching report.

GRA vs GIA: what is the difference?

This is an important distinction. GIA grades natural diamonds and gemstones and is the global gold standard for diamond grading. GRA reports are specific to moissanite and confirm the stone’s characteristics rather than appraising market value. A GRA report is a genuine, useful document — just understand that it certifies what the stone is, not what it would resell for.

How to verify a GRA certificate is genuine

• Check that the report number matches the one laser-inscribed on the stone or printed on the card.
• Confirm the stated measurements match the stone you receive.
• Use a diamond tester — quality moissanite passes standard diamond testers because it conducts heat similarly.

Why it matters when you buy

A GRA certificate gives you confidence that you are getting genuine, high-grade moissanite — not glass, cubic zirconia or a lower-grade stone sold at a premium. Combined with a clear return policy and a lifetime warranty, it protects your purchase.

At Alsahra, every piece is GRA certified, D colour, VVS1 clarity, and passes a diamond tester. Explore the full GRA moissanite collection, or browse our engagement rings and tennis collection — all backed by a lifetime warranty and free GCC shipping.