Updated as of June 2026
Sugilite vs Amethyst
| Sugilite | Amethyst | |
|---|---|---|
| Price / carat | $20 to $200 | $5 to $60 |
| Hardness (Mohs) | 6 | 7 |
| Color | Purple, Magenta, Violet | Purple, Violet, Lavender |
| Treatment | Typically untreated | Heat treatment (to alter or deepen color) |
The bottom line
Sugilite and Amethyst 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 Sugilite and Amethyst.
Frequently asked questions
Is Sugilite or Amethyst more durable?
Amethyst is harder (Mohs 7 vs 6), so it resists scratches better.
Which is cheaper, Sugilite or Amethyst?
Sugilite runs about $20 to $200 per carat and Amethyst about $5 to $60 per carat, so Amethyst is usually the more affordable choice.
Which should I choose?
Pick Sugilite if you want purple tones and Amethyst if you prefer purple. Match the stone hardness to how you will wear it and let budget break the tie.