Updated as of June 2026
Zoisite vs Tanzanite
| Zoisite | Tanzanite | |
|---|---|---|
| Price / carat | $10 to $150 | $100 to $1,200 |
| Hardness (Mohs) | 6.5 | 6.5 |
| Color | Green, Pink, Blue, Multicolor | Blue, Violet-blue, Purple |
| Treatment | Typically untreated | Heat treatment (nearly all stones) |
The bottom line
Zoisite 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 Zoisite and Tanzanite.
Frequently asked questions
Is Zoisite or Tanzanite more durable?
Both rate Mohs 6.5, so they are comparably durable.
Which is cheaper, Zoisite or Tanzanite?
Zoisite runs about $10 to $150 per carat and Tanzanite about $100 to $1,200 per carat, so Zoisite is usually the more affordable choice.
Which should I choose?
Pick Zoisite if you want green tones and Tanzanite if you prefer blue. Match the stone hardness to how you will wear it and let budget break the tie.