Gemstones
Peridot: The Olive-Green Gem
Peridot is one of the few gems that forms in a single colour family, prized for its warm olive-to-lime green and lack of treatment.
Single-colour mineral
Peridot is the gem variety of olivine, and its green colour comes from iron within the crystal structure itself rather than trace impurities, which is why peridot occurs only in shades of green.
Virtually always untreated
Peridot is rarely, if ever, treated, making it one of the more straightforward coloured stones to buy with confidence about its natural state.
Durability caution
At 6.5–7 on the Mohs scale, peridot is moderately hard but can be sensitive to sudden temperature changes and acidic substances, so avoid ultrasonic cleaners and household chemicals.
Buyer checklist
- ✓ Confirm clarity, since peridot often has visible inclusions
- ✓ Avoid ultrasonic cleaning and extreme temperature swings
- ✓ Choose protective settings for ring use given moderate hardness
Verification tools & references
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