Moissanite Grades Explained: Color, VVS Clarity and GRA Certificates
Moissanite is often listed as "D color, VVS1, GRA certified". Those letters are borrowed from diamond grading, but they do not mean quite the same thing for moissanite, and a GRA card is not the same as a report from an independent gem lab. Here is what each grade tells you, how much weight to give a certificate, and what actually matters when you choose a stone.
Color Grades: D to F and Beyond
Moissanite sellers use the same D-to-Z letters as diamonds:
- D, E, F (colorless): no visible tint face-up. Most colorless moissanite sold today is described in this range.
- G, H, I (near colorless): a faint warmth, mostly visible from the side or in larger stones. It can look lovely in yellow or rose gold.
- J and below: a noticeable tint. Early moissanite from the late 1990s often had a yellow or green cast.
Even top colorless moissanite can show a slight grey, green or yellow hint in some lighting, and that is easier to see in large stones and step cuts. The best test is how the stone looks to you in daylight and indoor light, side by side with a white background.
Colored Moissanite
Blue, green, champagne, black and other colors are available too. Some colors are produced in the crystal itself; others are a thin coating applied to the back of a colorless stone, which can wear over time. If you are buying a colored stone, ask the seller which kind it is. Our colored moissanite guide explains the shades.
Clarity Grades: What VVS Means
| Grade | Meaning | What you see |
|---|---|---|
| FL / IF | Flawless / internally flawless | Nothing, even at 10x |
| VVS1 / VVS2 | Very, very slightly included | Tiny features that are hard to find even at 10x |
| VS1 / VS2 | Very slightly included | Small features visible at 10x, not to the eye |
| SI1 / SI2 | Slightly included | Visible at 10x, sometimes to the eye |
Because moissanite is grown in a controlled lab, most stones on the market are very clean, and VVS is the usual grade. When moissanite does have inclusions, they often look like fine needles running parallel to each other. For a ring seen at arm's length, any stone graded VS or better looks clean to the eye, so clarity matters less than color and cut.
Cut: There Is No Official Grade
There is no standard cut grading system for moissanite. Judge the cut by symmetry, by how evenly the stone sparkles in a video, and by measurements that match the shape's usual proportions. The shape you choose also changes how diamond-like the stone looks; see which moissanite cut looks most like a diamond.
Carat: Why Moissanite Is Sold by Size
Moissanite is about 9 to 10 percent lighter than diamond, so a moissanite sold as "1 ct" is usually the size of a 1 ct diamond (a diamond-equivalent weight) and actually weighs a little less. That is why the millimetre size is the number to trust. Our size chart lists it for every shape.
What Is a GRA Certificate?
Much of the moissanite on the market comes with a GRA card or report, usually explained as standing for Global Gemological Research Association. It typically names the stone as moissanite, lists color, clarity and size, and gives a number that is also laser-inscribed on the stone's girdle.
What to keep in mind:
- It is not an independent gem lab report. GRA cards are issued within the moissanite trade, and their grades are not checked against an independent standard. Treat them as a description of the stone, not as proof of quality.
- They can leave things out. A 2023 article in The Australian Gemmologist by Laura Brehaut of the Gemmological Association of Australia examined GRA-carded colored moissanite. The cards did not mention that the stones were surface-coated, did not use the word "synthetic", and were designed to look like a diamond grading report. The stones' laser-inscribed numbers did match their cards.
- Check it yourself. Compare the number on the card with the inscription on the stone, type the number into the issuer's website rather than relying on a printed QR code, and for colored stones ask directly whether the color is a coating.
The most reliable checks are simpler: a jeweler's multi-tester and a loupe will confirm the stone is moissanite, and your own eyes and a clear return policy will tell you whether you like it. See how to tell moissanite from diamond.
What We Provide at Bhumi Gems
Every piece comes with a Bhumi Gems certificate of authenticity that states the stone and the metal. Each listing gives the stone's shape, color, clarity and size in millimetres, every moissanite is sold as moissanite, and every lab grown diamond as a lab grown diamond. If you want a stone checked before it is set, ask us for close-up photos or a video. Browse loose moissanite stones or moissanite engagement rings.
Quick Answers
Is VVS moissanite good quality?
Yes. VVS means any inclusions are tiny and hard to find even under magnification. It is the usual grade for moissanite.
Is D color moissanite better than E or F?
All three look colorless face-up. The difference is very hard to see once the stone is set.
Is a GRA certificate legit?
It is a real document that describes the stone, but it is issued within the moissanite trade rather than by an independent gem lab, so it does not prove quality on its own.
Does moissanite need a certificate?
Not in the way an expensive diamond does. A clear description from the seller, the millimetre size and a good return policy matter more.
Do moissanite grades affect price much?
Less than with diamonds. Size, cut and the setting usually make a bigger difference to the price than a step between D and F or VVS1 and VVS2.