Lab Grown Diamond 4Cs Explained
Lab grown diamonds have the same 4Cs as natural ones. Here is how to read carat, color, clarity and cut on a lab diamond report.
The 4Cs work the same way
A lab grown diamond is chemically identical to a natural diamond, so GIA and IGI grade both with the same 4C scale. Carat is weight, color runs D-Z, clarity from FL to I3, and cut from Excellent to Poor. Browse lab diamond rings.
Where to spend your budget
| Priority | Why | Suggestion |
|---|---|---|
| Cut | Drives 80 percent of sparkle | Excellent only |
| Color | Visible on the finger | H or better |
| Clarity | Most inclusions are invisible | VS2 or better |
Check the report carefully
Confirm the report says the stone is HPHT or CVD grown, and that the girdle is laser-inscribed. A quality lab diamond should come with GIA or IGI certification. Get a certified stone quote.
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Get a Free Quote Chat on WhatsAppFrequently Asked Questions
Are lab grown diamonds graded the same as natural ones?
Yes. GIA and IGI use the identical 4C scale for both.
Which C matters most in a lab diamond?
Cut. A well-cut stone looks bigger and brighter than a poorly cut one.
Do lab diamonds have resale value?
Lower than natural, so buy for the look and the price, not as an investment.