Engagement Rings
Lab Grown Tanzanite vs Mined Comparison Chart
Compare Lab Grown PureGem Tanzanite to Mined Tanzanite.
| Feature | Lab-Grown Tanzanite | Natural Tanzanite |
|---|---|---|
| Clarity | VVS-IF | VS-VVS |
| Refractive Index | ~1.719 | 1.685 - 1.707 |
| Mineral Content | Lab-grown Zoisite | Natural Zoisite with Vanadium |
| Mohs Hardness | 6.5 - 7.5 | 6 - 7 |
| Toughness | Very Good | Moderate, can be brittle |
| Scratch Resistance | Yes | Moderate, requires careful handling |
| ECO-FRIENDLY | Yes | No |
| CONFLICT FREE | Yes | No |
| PRICE / CARAT | $399 | $1000 - $1800+ |