Updated as of June 2026
Fluorite vs Amethyst
| Fluorite | Amethyst | |
|---|---|---|
| Price / carat | $2 to $50 | $5 to $60 |
| Hardness (Mohs) | 4 | 7 |
| Color | Purple, Green, Blue, Yellow, Multicolor | Purple, Violet, Lavender |
| Treatment | Typically untreated | Heat treatment (to alter or deepen color) |
The bottom line
Fluorite 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 Fluorite and Amethyst.
Frequently asked questions
Is Fluorite or Amethyst more durable?
Amethyst is harder (Mohs 7 vs 4), so it resists scratches better.
Which is cheaper, Fluorite or Amethyst?
Fluorite runs about $2 to $50 per carat and Amethyst about $5 to $60 per carat, so Fluorite is usually the more affordable choice.
Which should I choose?
Pick Fluorite 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.