Difference between Lab Grown and Natural Emeralds
Updated: Mar 6
Lab-grown emeralds and natural emeralds are chemically, physically, and optically identical. Both belong to the beryl family, share the same crystal structure, hardness, and rich green color caused by chromium and vanadium. When cut and polished, they look the same to the naked eye and perform equally well in fine jewelry. The only difference lies in their origin—one forms deep within the earth over time, while the other is created under controlled laboratory conditions that replicate nature.
Feature | Lab-Grown Emerald | Natural Emerald |
Mineral Family | Beryl | Beryl |
Chemical Composition | Be₃Al₂Si₆O₁₈ | Be₃Al₂Si₆O₁₈ |
Crystal Structure | Hexagonal | Hexagonal |
Colour Origin | Chromium & Vanadium | Chromium & Vanadium |
Hardness | 7.5–8 (Mohs scale) | 7.5–8 (Mohs scale) |
Optical Properties | Same brilliance & glow | Same brilliance & glow |
Cut & Finish | Cut and polished by expert gem cutters | Cut and polished by expert gem cutters |
Jewellery Use | Rings, earrings, pendants, bracelets | Rings, earrings, pendants, bracelets |
Certification | Can be graded & certified | Can be graded & certified |
Visual Appearance | Visually identical | Visually identical |
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