Yes — on every measurable quality dimension. The same hardness, the same optical properties, the same IGI grading, the same durability. Lab grown diamonds differ from mined only in origin and price. This guide gives the complete, honest assessment.
"As good as real" contains an assumption worth examining: the assumption that mined diamonds are the reference standard of "real" and lab grown are measured against them. A more accurate framing is that both are diamonds — the same material — and the comparison is about which origin better serves a specific buyer's priorities.
With that reframing: lab grown diamonds are as good as mined diamonds on every quality measure. They are the same material. The IGI measures them identically. They have the same hardness, the same optical properties and the same permanence. The differences are in origin, price and resale value — not in quality.
| Dimension | Lab Grown | Mined | Verdict |
|---|---|---|---|
| Chemical composition | Pure carbon — cubic crystal | Pure carbon — cubic crystal | Same |
| Mohs hardness | 10 | 10 | Same |
| Brilliance | Same refractive index | Same refractive index | Same |
| Fire | Same dispersion | Same dispersion | Same |
| IGI grading | Same scale and criteria | Same scale and criteria | Same |
| Durability | Permanent — does not age | Permanent — does not age | Same |
| Daily wear | Excellent | Excellent | Same |
| Price | 60–80% less | Carries scarcity premium | Lab grown better value |
| Environmental footprint | Significantly lower | Mining footprint | Lab grown better |
| Resale value | Lower | Higher (but still poor ROI) | Mined better for resale |
Book a free online consultation. Yash Chandpara compares lab grown and mined diamonds side by side and answers every quality question directly.