Compare Diamonds
Natural, lab-grown, and diamond simulants compared on the factors that actually affect a buying decision.
Lab-grown diamonds are chemically identical to natural diamonds and require the same grading standards — the difference is origin and resale value, not durability or appearance.
- Moissanite is a distinct mineral, not a diamond, and grading reports use different criteria entirely.
- Resale value is the single biggest practical difference buyers underestimate.
Feature Comparison
| Feature | Natural Diamond | Lab-Grown Diamond | Moissanite | Cubic Zirconia |
|---|---|---|---|---|
| Parent Company | N/A (mined) | N/A (grown, various producers) | N/A (synthetic) | N/A (synthetic) |
| Primary Focus | Traditional fine jewelry | Value-focused fine jewelry | Budget diamond alternative | Costume / fashion jewelry |
| Diamond Quality | Fair–Excellent (graded) | Fair–Excellent (graded) | N/A (not a diamond) | N/A (not a diamond) |
| Certificates | GIA, AGS, IGI | IGI, GIA | GRA (some sellers) | Rarely certified |
| Price / Value | $$$$ | $$ | $ | ¢ |
Who Should Choose What
Where to Buy
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Our Methodology
Material comparisons are based on published gemological standards (GIA, IGI) and our own retailer pricing audits, not any single manufacturer's marketing claims.
Frequently Asked Questions
Can a jeweler tell lab-grown and natural diamonds apart by eye?
No — they are visually and chemically identical. Distinguishing them requires specialized equipment that detects trace growth patterns, which is why certification matters more for lab-grown stones, not less.
Is moissanite a type of diamond?
No. Moissanite is silicon carbide, a completely different mineral. It's a diamond simulant, not a diamond variety.