Updated as of June 2026
Euclase vs Kyanite
| Euclase | Kyanite | |
|---|---|---|
| Price / carat | $100 to $600 | $5 to $120 |
| Hardness (Mohs) | 7.5 | 6 |
| Color | Blue, Green, Colorless | Blue, Green, Black |
| Treatment | Typically untreated | Typically untreated |
The bottom line
Euclase and Kyanite 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 Kyanite.
Frequently asked questions
Is Euclase or Kyanite more durable?
Euclase is harder (Mohs 7.5 vs 6), so it resists scratches better.
Which is cheaper, Euclase or Kyanite?
Euclase runs about $100 to $600 per carat and Kyanite about $5 to $120 per carat, so Kyanite is usually the more affordable choice.
Which should I choose?
Pick Euclase if you want blue tones and Kyanite if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.