Short answer. A silver polishing cloth, used dry, takes a darkened sterling chain back to bright in seconds. If the piece is dirty rather than dark, warm water with a drop of mild soap and a soft brush comes first, then dry it completely. Sterling darkening is not damage and not a fault; it is what silver does with air, and it is reversible. The only rule that really matters is which pieces the cloth is allowed near, because on anything with gold on top the cloth removes the gold.
Why sterling darkens in the first place
Sterling silver is 92.5% pure silver alloyed with a small amount of another metal — usually copper — for hardness, which is what the 925 stamp records. Pure silver is too soft to hold a clasp or a stone setting, so the alloy is not a compromise; it is the reason the piece works.
Both metals react with sulphur compounds, which are in ordinary air, in sweat, in wool, in rubber bands and in some cosmetics. The reaction forms a thin film: first a warm straw colour, then grey, then near-black if a piece has been shut in a drawer for a year. It sits on the surface only. The silver underneath is untouched, which is why this is reversible and a scratch is not.
Sydney adds humidity and coastal salt, so a piece left on a bathroom shelf here darkens faster than the same piece in a dry cupboard.
What a polishing cloth actually is
A proper silver polishing cloth has two layers: an inner one impregnated with a very fine abrasive and an anti-tarnish agent, which lifts the film, and a plain outer one that buffs the surface back to a shine. Used dry, in short straight strokes rather than circles, it takes a darkened sterling piece back in under a minute.
Mechanically, the cloth removes a microscopically thin layer of metal. On solid sterling that layer is the tarnish, and there is a great deal of silver underneath, so you can do it for years.
The one place it must never go
On a gold-plated or gold vermeil piece, the surface layer is the gold. A polishing cloth, a silver dip and an abrasive cream will all take it off, evenly and permanently, faster than years of wearing the piece would. Silver dips are the worst of the three, because they work chemically and reach everywhere at once, including under a setting.
So the cloth is a sterling tool. Keep it in the drawer with the silver, not with everything.
What to use on what
| Piece | Silver polishing cloth | Warm soapy water | Silver dip / abrasive cream |
|---|---|---|---|
| Solid 925 sterling silver | Yes — this is what it is for | Yes, then dry completely | Unnecessary; the cloth does the job |
| Sterling set with moissanite | Yes, on the metal; avoid dragging across claws | Yes, with a soft brush behind the stone | No |
| Platinum- or rhodium-plated sterling | No — the white finish is a layer | Yes, then dry completely | No |
| Gold over sterling, or gold vermeil | No — it removes the gold | Only if a dry cloth was not enough | No |
| Gold over stainless steel | No — same reason | Only if a dry cloth was not enough; dry the hinge | No |
| Anything with a pearl on it | No | Damp cloth on the pearl only; do not soak | No |
The soapy water method, properly
Use this when a piece is dull and greasy rather than dark — the film of skin oil, sunscreen and hairspray that builds up in the detail of a setting and stops light getting to the stone.
One. Warm, not hot, water. One drop of plain washing-up liquid — nothing scented, nothing with a cream or polish in it.
Two. A few minutes in the water for solid sterling: long enough to soften the film, not long enough for anyone to forget about it.
Three. A soft toothbrush, worked from behind the stone rather than across the face. The back of a setting is where the film sits and where the light enters, so cleaning the front only is why a stone can look clean and still read dead.
Four. Rinse in clean water, never over an open drain.
Five. Dry completely — the step people skip. Pat with a soft cloth, then leave the piece out for an hour.
Moissanite takes all of this without complaint; it is hard enough for a brush and warm soapy water, which is one of the practical arguments for it in a piece that gets worn rather than kept. The Équinoxe Halo Ring is a halo of brilliant-cut moissanite on solid 925 sterling silver, and a halo is precisely the setting that dulls from behind and comes back with a brush.
Pearls are the exception to everything
A pearl is not a mineral cut from rock; it is layered nacre, and it is porous. Soap, ultrasonic cleaners and any dip dull the surface permanently. Wipe a pearl with a barely damp soft cloth after wearing and let it dry flat. The Marée Baroque Pearl Bracelet threads one baroque pearl onto rhodium-plated 925 sterling silver, so both halves of it are on the do-not-dip list: the pearl because it is porous, the rhodium because it is a finish.
The kitchen remedies
Bicarbonate of soda on foil in hot water does work — an electrochemical reaction that converts tarnish back rather than scrubbing it off — but it is uncontrolled. It reaches stones, glues, pearls, oxidised detail meant to stay dark and any plated finish, all at once, and cannot be stopped halfway. Toothpaste is worse: an abrasive with no consistency between brands, leaving fine scratches on a polished face. A cloth costs less than the piece and does the job in a minute.
Not cleaning it in the first place
Every hour of cleaning is bought back by four habits, the same four for every material here: last on, first off; keep it dry; wipe it down; store it apart. Ten seconds with a soft dry cloth after wearing removes the oils that would otherwise sit on the surface all night, and it is the highest-return thing you can do to a silver piece.
Storage does the rest. Fasten a chain's clasp before putting it away and it will not knot. Lie rings flat rather than stacked, stones face up, and keep studs in pairs with the backs on. Keep all of it out of bathrooms, off windowsills and out of loose bags where pieces scratch each other. A closed pouch slows tarnish considerably, because it limits the air the reaction needs.
Étoilée is solid 925 sterling silver set with brilliant-cut moissanite, with a few pieces finished in platinum over the sterling to hold the white — those pages say so, and those are the ones to keep the cloth away from. The full routine by material is on the care page. For the gold side of Amaurine, start with does gold vermeil tarnish, or the Australian guide to gold-plated, vermeil and solid gold.
Questions
How do you clean sterling silver at home?
A dry silver polishing cloth for darkening, in short straight strokes. Warm water with a drop of mild soap and a soft brush for grease and build-up, then dry the piece completely and leave it out for an hour before storing it. Do not use both at once, and do not use anything abrasive on a stone.
Why does my sterling silver turn black?
Sterling is 92.5% silver alloyed with another metal for hardness, and both react with sulphur compounds in air, sweat, wool and rubber. The result is a surface film that goes straw, then grey, then near-black. It is expected, it is reversible, and the silver underneath is unaffected.
Can you use a silver polishing cloth on gold plated jewellery?
No. A polishing cloth works by removing a microscopically thin layer of metal. On solid sterling that layer is tarnish. On a gold-plated or gold vermeil piece that layer is the gold, and it does not grow back. The same applies to silver dips, abrasive creams and platinum- or rhodium-plated finishes.
Does toothpaste or bicarbonate of soda clean silver?
Both do something, and neither is worth it. Toothpaste is an abrasive with no consistency between brands and leaves fine scratches on a polished surface. The bicarbonate-and-foil method works chemically but reaches everything at once — stones, glues, pearls, oxidised detail, any plated finish — and cannot be stopped halfway.
How do you clean a moissanite ring?
Warm water with a drop of mild soap and a soft toothbrush, worked from behind the setting rather than across the face. Moissanite is hard enough to take it. Most of the dullness in a set stone is a film on the back, which is where light enters, so cleaning only the front is why a stone can look clean and still look flat.
How do you stop silver tarnishing?
Limit the air and the chemistry. Wipe a piece with a dry cloth after wearing, store it in a closed pouch or lined box rather than loose, keep it out of the bathroom and off windowsills, and put it on after perfume, sunscreen and moisturiser rather than before. Tarnish is a reaction; storage slows the reaction more than cleaning ever reverses it.
