Start With a Careful Assessment

Pearls sit low on the Mohs scale — usually somewhere between 2.5 and 4.5 — so they scratch far more easily than gold, silver or most faceted stones. An inherited ring or pendant may have spent decades in a drawer, and appearances can be deceptive: a strand can look flawless while the silk inside the drill holes has quietly perished. Before you wear the piece, give it a proper look in daylight.

• Check the setting. Run a fingernail gently around the claws or bezel. Loose prongs, a thinning shank, a worn bail or a jump ring that has opened slightly all put the pearl at risk. A ring that has lost a pearl once is often the one with a tired setting.
• Inspect the thread. On a strung piece, look between the pearls. Frayed, stretched or discoloured thread, or a gap where a knot has slipped, means restringing is due.
• Look at the surface. Fine crazing, dull patches or a chalky bloom can signal dryness or decades of old cosmetic residue. Deep cracks rarely improve with cleaning, though a jeweller may be able to disguise minor ones.
• Identify what you can. Freshwater, akoya, South Sea and imitation pearls behave differently. If you are unsure what you have inherited, ask a jeweller or valuer before you clean anything.

Cleaning Heirloom Pearls Safely

Pearls are made of nacre, a delicate layered material that dislikes acid, heat, dryness and chemicals. The gentlest routine is almost always the right one.

• Use lukewarm water with a drop of mild, pH-neutral soap and a very soft cloth or makeup brush.
• Wipe, do not soak. Strung pieces should never be left to sit in water, as it softens and stretches the thread and can loosen the knots.
• Dry flat on a soft towel, away from radiators and direct sunlight. Never use a hairdryer.
• Avoid ultrasonic and steam cleaners entirely, along with silver dip, ammonia, vinegar, lemon juice and bicarbonate of soda. They strip lustre and can pit the surface permanently.
• Keep perfume, hairspray, sunscreen and hand cream away from pearls. Apply these first, let them dry, then put the jewellery on.

For the metal parts, a soft dry cloth is usually enough. If you use a silver polishing cloth, keep it well away from the pearl itself — the impregnated chemicals can etch nacre. Where possible, let a jeweller clean the metal while working carefully around the pearl.

Storage and Everyday Wear Habits

Two habits do more for heirloom pearls than any cleaning product: wearing them sensibly, and storing them kindly.

• Store each piece in its own soft pouch or lined compartment, never loose beside diamonds, chains, keys or brooches.
• Skip airtight plastic bags. Pearls hold a small amount of water and prefer a little humidity, so a fabric pouch in a drawer suits them better than a sealed bag in a dry safe.
• Wear them occasionally. Pearls that are never worn can dry out and lose their subtle glow.
• Remove rings and pendants before swimming, showering, washing up or gardening. Chlorine, salt, detergents and abrasives all take a toll, and a ring slips easily from cold, soapy fingers.

When to Arrange Restringing and Repairs

Any strand worn regularly should be restrung every year or two; one kept for best may go three or four years. Ask for hand-knotting between each pearl. A knotted strand loses a single pearl if the thread breaks, rather than scattering the lot across a pavement. Request that a sound original clasp be reused, as it is part of the piece's history, and have the restringer check the drill holes for cracks while the strand is apart.

For pendants, watch for stretched bails and thin jump rings, which are cheap to replace and expensive to ignore. Rings deserve the closest attention: worn claws and a thin shank are the usual reasons an heirloom pearl goes missing, and matching a replacement decades later is rarely straightforward. If a setting is fragile, consider a protective bezel or a half-bezel that leaves the pearl visible but secure. It is also worth arranging a valuation and a set of photographs for insurance, and jotting down any family history you know — that story travels with the piece.

Styling Inherited Pearls with Rustic Textures

Older pearl pieces can read as very formal, which is often why they stay in the box. Layering them against natural textures softens that formality and makes them wearable with everyday clothes.

• Swap the chain. A single pearl pendant on a leather or waxed cotton cord looks relaxed over linen, denim or a chunky knit.
• Stack your rings. Pair a pearl ring with a hammered or brushed band in warm gold or oxidised silver for a collected, unfussy look.
• Mix materials. Wood, horn, amber and matte beads sit comfortably beside pearls, especially in earthy tones such as oatmeal, olive, rust and charcoal.
• Turn a clasp to the front on a shorter strand, so an old decorative clasp becomes the feature rather than a hidden detail.

Passing Them On in Good Order

Keep a short written note with the piece: what you know of its origin, when it was last restrung, which jeweller checked the setting and any allergies or preferences of the wearer. Mention the care basics to whoever inherits it next — last on when dressing, first off at night, stored in cloth, cleaned gently. A pearl ring or pendant that has already survived one generation deserves the small, steady attention that will carry it safely through the next.