Updated as of June 2026
Iolite vs Sapphire
| Iolite | Sapphire | |
|---|---|---|
| Price / carat | $15 to $150 | $50 to $2,000 |
| Hardness (Mohs) | 7 | 9 |
| Color | Blue, Violet-blue, Gray | Blue, Pink, Yellow, White, Padparadscha |
| Treatment | Typically untreated | Heat treatment |
The bottom line
Iolite 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 Iolite and Sapphire.
Frequently asked questions
Is Iolite or Sapphire more durable?
Sapphire is harder (Mohs 9 vs 7), so it resists scratches better.
Which is cheaper, Iolite or Sapphire?
Iolite runs about $15 to $150 per carat and Sapphire about $50 to $2,000 per carat, so Iolite is usually the more affordable choice.
Which should I choose?
Pick Iolite 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.