| Property | Aquamarine | Aventurine |
|---|---|---|
| Category | Semi-Precious Gems | Semi-Precious Gems |
| Primary Color | blue | various |
| Mohs Hardness | 7.5–8.0 | 7.0–6.5 |
| Specific Gravity | 2.66 | 2.64 |
| Refractive Index | 1.57 | 1.544 |
| Crystal System | Hexagonal | Triclinic |
| Luster | — | — |
| Chemical Formula | — | — |
| Price Tier | Moderate ($50-500/ct) | Moderate ($50-500/ct) |
| Daily Wear | Yes | Yes |