How to Clean & Care for Pearl Jewelry: Expert Guide
To care for pearl jewelry: wipe pearls with a soft, clean cloth after every wear, clean occasionally with warm soapy water (never ultrasonic or steam cleaners), put them on last after makeup and perfume have dried, and store them flat in a soft pouch away from other jewelry. Pearls rank just 2.5 on the Mohs hardness scale (GIA) — softer than almost everything else in your jewelry box — so the rules below matter more than for any other gem you own.
Key Takeaways
- "Last on, first off": pearls go on after cosmetics and come off before undressing.
- Wipe with a soft cloth after every wear; deep-clean only with warm, mildly soapy water.
- Never use ultrasonic cleaners, steam, or household chemicals on pearls.
- Store pearls flat, separately from harder gems — and not in an airtight or bone-dry place.
- Restring frequently-worn pearl strands roughly once a year, knotted between pearls.
Why do pearls need special care?
Pearls are organic gems: layers of nacre made of aragonite (a form of calcium carbonate) bound by conchiolin. That structure gives pearls their glow, but it also makes them soft and chemically sensitive. At Mohs 2.5 (GIA), a pearl can be scratched by a fingernail's edge, a diamond, a zipper, or the gold chain sitting next to it in a jewelry box. Acids — including perfume, hairspray, cosmetics, and even heavy skin oils — dull and eventually etch the nacre. The good news: cared-for pearls last generations; the antique strands in auction houses prove it.
How do you clean pearls at home?
For routine care, GIA's guidance is simple: wipe pearls with a very soft, clean cloth after each wearing. This removes skin oils, perfume residue, and perspiration before they can work into the nacre. For an occasional deeper clean:
- Mix lukewarm water with a few drops of mild soap (not detergent, not ammonia-based cleaner).
- Wipe each pearl with a soft cloth dipped in the solution — don't soak a strand, because water weakens and stretches the silk thread.
- Rinse the cloth in clean water and go over the pearls again to lift soap residue.
- Lay flat to dry completely on a soft towel before wearing or storing — hanging a damp strand stretches the silk.
A dedicated pearl polishing cloth is the safest tool for restoring everyday luster between cleans.
What should never touch your pearls?
Most pearl damage comes from chemistry, not accidents. Keep pearls away from:
- Ultrasonic and steam cleaners — GIA flags both as never-use for pearls; vibration and heat crack and cloud nacre.
- Perfume, hairspray, and cosmetics — the alcohols and acids dull luster permanently. Hence the trade rule: last on, first off.
- Household chemicals — bleach, vinegar, and ammonia dissolve calcium carbonate on contact.
- Chlorinated pools and hot tubs — chlorine attacks both nacre and the silk thread.
- Prolonged heat and direct sun — pearls contain trace water; drying them out causes cracking.
How should you store pearl jewelry?
Store pearls lying flat, in a soft pouch or a lined, compartmentalized jewelry box where they can't rub against harder gems or metal — remember, nearly everything else you own can scratch them. Two storage mistakes are surprisingly common:
- Airtight containers and safety deposit boxes: pearls need ambient humidity; bone-dry environments can dehydrate and crack nacre over time (GIA). A fabric pouch in a drawer beats a sealed plastic bag.
- Hanging strands: gravity stretches silk thread. Necklaces rest flat; only pendants on chains should hang.
And the best storage advice is the least intuitive: wear your pearls. Regular gentle contact with skin keeps them from drying out — pearls locked away for decades age worse than pearls worn monthly.
When should pearls be restrung?
If you wear a pearl strand regularly, have it professionally restrung about once a year — more often if you notice the silk discoloring, fraying, or gaps opening between pearls and knots. Insist on knots between each pearl: they stop pearls grinding against each other and, if the strand ever snaps, you lose nothing. This is standard practice on every strand we make at L'Amour Pearls, and any competent jeweler offers the service.
Pearl care routine: quick reference
| When | What to do |
|---|---|
| Before wearing | Finish makeup, perfume, hairspray first; put pearls on last |
| After every wear | Wipe with a soft, dry cloth; take pearls off first |
| Monthly (or as needed) | Gentle clean with warm, mildly soapy water; dry flat |
| Yearly | Professional inspection and restringing of worn strands |
| Always | Store flat, separate from other jewelry, never airtight |
FAQ: Pearl care
Can I wear pearls every day?
Yes — daily wear actually benefits pearls by keeping nacre from drying out, and freshwater pearls (nearly solid nacre) are especially durable. Just follow the two rules that matter: put them on after cosmetics, and wipe them with a soft cloth when you take them off.
Can I shower or swim with pearls on?
No. Soap film dulls luster, hot water weakens silk thread, and chlorine chemically attacks nacre. Remove pearls before showering, swimming, exercising, or applying lotion — water damage is gradual, so the harm shows up months later as dullness.
How do I restore shine to dull pearls?
Start with a gentle clean using warm, mildly soapy water, then buff with a pearl polishing cloth. If luster doesn't return, the nacre may be etched by chemical exposure — a jeweler can assess it, but etched nacre can't be re-polished the way metal can, which is why prevention is everything with pearls.
Why can't pearls go in an ultrasonic jewelry cleaner?
Ultrasonic cleaners work by high-frequency vibration, which can crack nacre layers and shake pearls loose from settings; steam cleaners add heat that dehydrates the pearl. GIA lists both as unsafe for pearls in all cases. Warm soapy water and a soft cloth do the job safely.
Do pearls really "die" if unworn?
Pearls don't die, but they can dehydrate. Nacre contains trace moisture, and years in a hot, dry, airtight space can leave pearls brittle and crazed. Stored properly — soft pouch, ambient humidity, worn now and then — pearls stay lustrous for generations.
Sources: GIA — Pearl Care & Cleaning Guide (gia.edu): Mohs hardness 2.5, soft-cloth routine care, warm soapy water cleaning, ultrasonic/steam prohibition, storage and humidity guidance. Industry restringing practice corroborated across The Pearl Source and Hauser's Jewelers care guides. Facts verified July 2026.
Give your pearls the care they deserve — find pearl care accessories and genuine handmade pieces in our Accessories and Classic Pearls collections. New to pearls? Learn how to tell if pearls are real and compare the four types of pearls.
