Updated as of June 2026
Benitoite vs Iolite
| Benitoite | Iolite | |
|---|---|---|
| Price / carat | $800 to $4,000 | $15 to $150 |
| Hardness (Mohs) | 6.5 | 7 |
| Color | Blue, Violet blue | Blue, Violet-blue, Gray |
| Treatment | Typically untreated | Typically untreated |
The bottom line
Benitoite and Iolite 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 Benitoite and Iolite.
Frequently asked questions
Is Benitoite or Iolite more durable?
Iolite is harder (Mohs 7 vs 6.5), so it resists scratches better.
Which is cheaper, Benitoite or Iolite?
Benitoite runs about $800 to $4,000 per carat and Iolite about $15 to $150 per carat, so Iolite is usually the more affordable choice.
Which should I choose?
Pick Benitoite if you want blue tones and Iolite if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.