Peridot, the olive-green August birthstone, is loved for its fresh, slightly glowing color — but it is one of the more delicate popular gems. It can crack under rapid temperature changes and dull under harsh chemicals. If you own peridot jewelry, cleaning it the wrong way can permanently damage the stone. Here is the safe method.
Why Peridot Needs Gentle Care
Peridot is 6.5–7 on the Mohs scale and contains internal cleavage that makes it sensitive to sudden heat and impact. It is also porous enough that cosmetics, sulfur and acid can cloud its surface. That means the cleaning tools used for diamond — steam machines and ultrasonics — are off-limits for peridot.
The Safe At-Home Cleaning Method
- Fill a bowl with lukewarm water and a drop of mild, phosphate-free dish soap.
- Soak the piece for 2–3 minutes to loosen oils and lotion.
- Gently brush the stone and behind the setting with a soft baby toothbrush.
- Rinse under lukewarm running water (close the drain first).
- Pat dry with a lint-free cloth and let it air-dry completely before storage.
What to Avoid
- No ultrasonic cleaners — vibrations and heat can loosen the stone or split it.
- No steam cleaners — sudden heat shock can crack peridot.
- No bleach, ammonia or acid — they pit and cloud the surface.
- No rapid temperature changes — never move the stone from hot water to cold.
For a broader reference, our stone-by-stone cleaning guide lists which gems can tolerate machines and which cannot.
Preventing Future Dullness
Peridot dulls mainly from perfume, lotion and body oil film. Apply cosmetics and sprays before putting on the jewelry, not after. Remove peridot pieces before gym work, dishwashing and heavy sweating — see our tips on jewelry care at the gym. Store peridot separately from harder gems to avoid scratches.
When to See a Jeweler
If your peridot looks cloudy despite gentle cleaning, it may be coated or have internal damage that home care cannot fix. A jeweler can assess whether re-polishing is safe. For routine upkeep, the lukewarm soap method above is enough to keep the glow for years.
The Bottom Line
Peridot rewards gentle care: lukewarm soapy water, a soft brush, and no machines. Treat it as the delicate green gem it is, keep cosmetics away from the stone, and it will keep its distinctive glow.
Storing Peridot So It Stays Green
Cleaning is only half of peridot care; storage protects the other half. Because peridot scratches at 6.5–7 on Mohs, it should never jangle loose with diamond or sapphire pieces, which will mark its surface. Store each peridot piece in its own soft pouch or a separate compartment, away from harder gems. Keep it out of direct sunlight and away from heaters, since prolonged heat can dry and damage the stone over time. A cool, dry drawer is ideal. Our broader gemstone storage guide covers the full system.
Peridot storage rules
- Store separately from harder stones to avoid scratches.
- Keep cool and dry, away from direct heat and sun.
- Put peridot on after makeup, perfume and hairspray.
- Remove before gym, gardening and dishwashing.
Peridot as a Gift and Birthstone
Peridot is the traditional August birthstone, which makes it a natural birthday and anniversary gift. Its fresh green color suits spring and summer jewelry, and its affordability lets you buy a larger, more visible stone than emerald would allow. When gifting, mention the gentle care notes so the recipient understands how to keep it glowing. For everyday rings, choose a protective bezel; for pendants and earrings, peridot is trouble-free. With the right storage and gentle cleaning, an August peridot piece stays vivid for years.