Updated as of June 2026
Euclase vs Topaz
| Euclase | Topaz | |
|---|---|---|
| Price / carat | $100 to $600 | $10 to $400 |
| Hardness (Mohs) | 7.5 | 8 |
| Color | Blue, Green, Colorless | Blue, White, Yellow, Pink |
| Treatment | Typically untreated | Irradiation and heat (most blue topaz) |
The bottom line
Euclase 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 Euclase and Topaz.
Frequently asked questions
Is Euclase or Topaz more durable?
Topaz is harder (Mohs 8 vs 7.5), so it resists scratches better.
Which is cheaper, Euclase or Topaz?
Euclase runs about $100 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 Euclase 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.