Updated as of June 2026
Aquamarine vs Topaz
| Aquamarine | Topaz | |
|---|---|---|
| Price / carat | $30 to $600 | $10 to $400 |
| Hardness (Mohs) | 7.75 | 8 |
| Color | Blue, Blue-green, Pale blue | Blue, White, Yellow, Pink |
| Treatment | Heat treatment (to deepen blue) | Irradiation and heat (most blue topaz) |
The bottom line
Aquamarine and Topaz 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 Aquamarine and Topaz.
Frequently asked questions
Is Aquamarine or Topaz more durable?
Topaz is harder (Mohs 8 vs 7.75), so it resists scratches better.
Which is cheaper, Aquamarine or Topaz?
Aquamarine runs about $30 to $600 per carat and Topaz about $10 to $400 per carat, so Topaz is usually the more affordable choice.
Which should I choose?
Pick Aquamarine if you want blue tones and Topaz if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.