Updated as of June 2026
Grandidierite vs Aquamarine
| Grandidierite | Aquamarine | |
|---|---|---|
| Price / carat | $500 to $4,000 | $30 to $600 |
| Hardness (Mohs) | 7.5 | 7.75 |
| Color | Green, Bluish green, Teal | Blue, Blue-green, Pale blue |
| Treatment | Typically untreated | Heat treatment (to deepen blue) |
The bottom line
Grandidierite and Aquamarine both make beautiful jewelry. Choose by the look you want first, then weigh hardness against how hard you will wear the piece, and let price settle close calls. Read the full guides for Grandidierite and Aquamarine.
Frequently asked questions
Is Grandidierite or Aquamarine more durable?
Aquamarine is harder (Mohs 7.75 vs 7.5), so it resists scratches better.
Which is cheaper, Grandidierite or Aquamarine?
Grandidierite runs about $500 to $4,000 per carat and Aquamarine about $30 to $600 per carat, so Aquamarine is usually the more affordable choice.
Which should I choose?
Pick Grandidierite if you want green tones and Aquamarine if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.