| Formed in the earth | |
| Historical significance and may have higher resale value | |
| Millions, if not billions of years old |
| Formed in a laboratory | |
| Indistinguishable from natural diamonds using the naked eye | |
| Advanced instruments needed to differentiate from natural diamonds |
| Diamond | Natural | Lab-Grown |
|---|---|---|
| Chemical Composition | Carbon | Carbon |
| Crystal Shape | Octahedron | Cuboctahedron/Cube |
| Refractive Index | 2.42 | 2.42 |
| Dispersion | 0.044 | 0.044 |
| Hardness | 10 | 10 |
| Density | 3.52 | 3.52 |
| Inclusions/Blemishes |
Information received from the Gemologist Institute of America.
| Lab-grown stone that has a similar hardness to a diamond | |
| Available in colorless, near-colorless, and multiple color options | |
| Exceptional sparkle — Reflects more light |
| Chemical Composition | Silicon Carbide |
|---|---|
| Crystal Shape | Cuboctahedron/Cube/Rhombohedral |
| Refractive Index | 2.65 - 2.69 |
| Dispersion | 0.1 |
| Hardness | 9.25 |
| Density | 3.22 |
| Inclusions/Blemishes | — |
Information received from the Gemologist Institute of America.
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