| Property | Almandine | Amber |
|---|---|---|
| Category | Semi-Precious Gems | Organic Gems |
| Primary Color | various | various |
| Mohs Hardness | 7.0–7.5 | 2.0–2.5 |
| Specific Gravity | 3.95 | 1.05 |
| Refractive Index | 1.77 | 1.539 |
| Crystal System | Isometric | Amorphous |
| Luster | Vitreous | Resinous |
| Chemical Formula | — | — |
| Price Tier | Moderate ($50-500/ct) | Budget (< $50/ct) |
| Daily Wear | はい | いいえ |