Aquamarine
blue · Beryl family
| Also known as | Beryl (Beryl family) |
|---|---|
| Colour | Blue |
| Mohs hardness | 7.5–8.0 |
| Lustre | Vitreous to resinous |
| Streak | White |
| Crystal system | Hexagonal |
| Transparency | Transparent to translucent |
| Cleavage | Imperfect on {0001} |
| Fracture | Conchoidal to irregular |
| Specific gravity | 2.63–2.92 |
What is Aquamarine?
Aquamarine may refer to:Aquamarine (color), a shade between green and blue Aquamarine (gemstone), a type of pale-blue to light-green beryl
How to identify Aquamarine
- Lustre: Vitreous to resinous.
- Hardness: Mohs 7.5–8.0 — hard enough to scratch glass.
- Streak: White.
- Habit: Hexagonal crystal system.
Aquamarine value
Aquamarine is a fine gemstone priced per carat by quality — colour, clarity, cut, carat and origin — not by weight in grams. Typical market ranges:
| Quality | Price per carat |
|---|---|
| Commercial | $20–$80 / ct |
| Good | $80–$250 / ct |
| Fine | $200–$600 / ct |
| Top | $500–$1,500 / ct |
Ranges cross-validated across two independent research passes against gemstone price guides, 2026-06 — sources: gia.edu, giliarto.com. Colour saturation, clarity, cut and origin move the price enormously, and treatments or lab-grown stones sell for a fraction — so this is a guide, not an appraisal. Have anything valuable checked by a certified gemmologist. See the full crystal & gemstone value guide.
Aquamarine in different forms
Stones often confused with Aquamarine
Frequently asked questions
How hard is Aquamarine?
Aquamarine is Mohs 7.5–8.0 on the hardness scale.
What colour is Aquamarine?
Aquamarine is typically blue.