What a GRA certificate means

A GRA card is a report that comes with most moissanite sold today. It records the shape, size, color and clarity grade of the stone and a report number. GRA is a private organization; it is not GIA and it is not an independent lab of GIA's standing. GIA does not grade moissanite at all. Treat a GRA card as a record of what you bought, not as an appraisal.

What the card records

Shape and cut, for example round brilliant.
Size in millimeters and carat (usually diamond equivalent weight).
Color and clarity grade, for example D color, VVS1.
A report number. On many stones the same number is laser-engraved on the girdle, the thin edge of the stone, and you can read it with a loupe.

What the card is not

It is not a GIA or IGI grading report, and it is not an appraisal for insurance. The grades are not checked by an independent lab. A card that verifies online only shows that the card exists. If you need an independent opinion, any jeweler can confirm in minutes that a stone is moissanite, and a gem lab can grade it.

Why we include it anyway

Shoppers expect it, and it records the stone you bought. What we stand behind is simpler: every stone we sell is moissanite, the size is as listed, and you have 30 days to return it if you are not happy.

Questions

Is a GRA certificate legit?

It is a real document that describes the stone, but GRA is a private organization, not an independent lab like GIA or IGI. Use it as a record of your purchase, not as an independent grade.

Does GIA certify moissanite?

No. GIA grades diamonds and colored gemstones but does not issue grading reports for moissanite.

How can I check my moissanite?

Ask any jeweler to test it with a multi-tester, or look through a side facet with a 10x loupe for doubled facet edges, a sign of moissanite.

Will moissanite pass a diamond tester?Returns and warranty

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By the moissaniteit team, Olivia Star Jewelry LLC, Florida. Updated 2026-10-11.