Updated as of June 2026
Benitoite vs Tanzanite
| Benitoite | Tanzanite | |
|---|---|---|
| Price / carat | $800 to $4,000 | $100 to $1,200 |
| Hardness (Mohs) | 6.5 | 6.5 |
| Color | Blue, Violet blue | Blue, Violet-blue, Purple |
| Treatment | Typically untreated | Heat treatment (nearly all stones) |
The bottom line
Benitoite and Tanzanite 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 Tanzanite.
Frequently asked questions
Is Benitoite or Tanzanite more durable?
Both rate Mohs 6.5, so they are comparably durable.
Which is cheaper, Benitoite or Tanzanite?
Benitoite runs about $800 to $4,000 per carat and Tanzanite about $100 to $1,200 per carat, so Tanzanite is usually the more affordable choice.
Which should I choose?
Pick Benitoite if you want blue tones and Tanzanite if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.