COMPARE GUIDE
Natural EmeraldVSTsavorite Garnet
Side-by-side comparison of physical properties, fluorescence, and crystal system — to identify by observation.
Decisive distinctionsDECISIVE
- ◎ is higher in Tsavorite Garnet, giving a numerical distinguishing point.
- ◎ is higher in Tsavorite Garnet, giving a numerical distinguishing point.
Note: properties whose numeric ranges do not overlap are auto-extracted. Both are measurable with a refractometer or heavy-liquid bath.
Physical propertiesPROPERTIES
| Property | A: Natural Emerald | B: Tsavorite Garnet | Verdict |
|---|---|---|---|
| Refractive index (RI) | 1.577–1.583 | 1.740–1.760 | B higher |
| Specific gravity (SG) | 2.67–2.78 | 3.57–3.73 | B higher |
| Mohs hardness | 7.5–8.0 | 7.0–7.5 | Overlap |
| Birefringence | 0.005 | — | — |
| Dispersion | — | — | — |
Optics & fluorescenceOPTICS & UV
| Property | A: Natural Emerald | B: Tsavorite Garnet |
|---|---|---|
| Crystal system | 六方晶系 | 等軸晶系 |
| Pleochroism | 強（緑・青緑） | — |
| Chelsea filter | red / pink | inert |
| UV (long-wave) | weak (red) | inert |
| UV (short-wave) | inert | weak (yellow) |
ObservationOBSERVATION
◆Tsavorite is singly refractive (garnet group), tougher, and rarely needs oiling.
Color categoriesCATEGORIES
A: Natural Emerald
Green
B: Tsavorite Garnet
Green
DISTINGUISHING TOOLS · 3 ITEMS
Distinguishing tools
Tools that decide between Natural Emerald and Tsavorite Garnet in practice.
Note: this page is auto-generated from published GIA / CGL reference values. Individual stones, treatments, and synthetics may fall outside these ranges. For a definitive identification, consult an accredited gem laboratory.