Updated as of June 2026
Kyanite vs Sapphire
| Kyanite | Sapphire | |
|---|---|---|
| Price / carat | $5 to $120 | $50 to $2,000 |
| Hardness (Mohs) | 6 | 9 |
| Color | Blue, Green, Black | Blue, Pink, Yellow, White, Padparadscha |
| Treatment | Typically untreated | Heat treatment |
The bottom line
Kyanite and Sapphire 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 Kyanite and Sapphire.
Frequently asked questions
Is Kyanite or Sapphire more durable?
Sapphire is harder (Mohs 9 vs 6), so it resists scratches better.
Which is cheaper, Kyanite or Sapphire?
Kyanite runs about $5 to $120 per carat and Sapphire about $50 to $2,000 per carat, so Kyanite is usually the more affordable choice.
Which should I choose?
Pick Kyanite if you want blue tones and Sapphire if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.