Silver Seller Guide

Don't clean your silver before selling it — here's why, and what to do instead

Cleaning silver before selling is one of the most common mistakes sellers make. It never helps, and sometimes causes significant damage.

Why British Gold Exchange

40+

Years in the precious metals business

£0

Cost to request your free insured postal pack

24h

Maximum time to receive your firm, itemised offer

100%

Of items returned free if you decline

Ready to get a valuation?

The short answer

Tarnish has no effect on silver value — cleaning can reduce it

Silver tarnishes naturally when exposed to air, sulphur compounds and moisture. The black or brown surface that develops over time is silver sulphide — a thin layer that in no way reduces the silver content of the piece or the offer you'll receive for it. Our XRF analyser reads through tarnish to the metal below. Tarnish is irrelevant to your offer.

For silverware and jewellery, cleaning is unnecessary before selling and occasionally damaging. Overly aggressive polishing can wear down hallmarks, thin decorative surfaces and remove patina that, on antique pieces, is part of their character. For silver coins, the situation is more acute: cleaning almost always destroys collector value and reduces a potentially numismatic piece to melt value.

The simple rule is: send your silver exactly as it is. Whether it's heavily tarnished, slightly marked or pristine, the offer will be the same for the metal content. The only difference is when a piece has collectible value — in which case original, undisturbed surfaces are worth considerably more than polished ones.

What affects it

What cleaning does to different types of silver

Silver coinsCleaning destroys collector value. Even gentle cleaning with silver polish leaves fine hairline scratches visible under magnification ('whizzing'). A cleaned Morgan dollar or rare pre-decimal coin is typically reduced to melt value — which could be a significant loss on a valuable piece.
Sterling cutleryCutlery sold for melt is unaffected by cleaning — the silver content doesn't change. However, if you have antique cutlery by a known maker (Hester Bateman, Paul Storr), preserving the original patina matters for any antique value assessment.
Silver jewelleryXRF testing reads through tarnish to the metal below. Cleaning makes no difference to the offer. If stones are set, avoid cleaning as some treatments can damage certain gemstones.
Hallmarked itemsHallmarks can be worn or obscured by aggressive polishing. A visible, clear hallmark confirms purity and speeds up assessment. Don't risk obscuring it.
Proof coinsProof coins have mirror-like fields and frosted details that are extremely easily damaged. Any contact — including wiping with a cloth — can permanently impair the surface. Never touch the face of a proof coin.
Antique silverwareAntique pieces with original patina in good condition may have value above silver melt (as collectibles or antiques). Cleaning removes patina and eliminates this premium. Send items as found and let us assess both values.
Bullion barsNo cleaning necessary or helpful. Sealed or unsealed bars should be sent as found. Sealed bars attract a premium — don't remove original packaging.

How it works

From first contact to payment

01

Request Your Free Pack

We post a fully insured, tracked Royal Mail freepost envelope. No cost, no commitment required.

02

Send Your Items

Send your items exactly as they are — tarnished, dirty, or marked. Condition doesn't affect silver value; cleaning can damage it.

03

Receive Your Offer

A firm, itemised offer arrives within 24 hours. Every piece is XRF-tested for purity. Tarnish has zero effect on the XRF reading or the offer.

04

Get Paid

Accept and receive a same-day bank transfer. Decline and we return every item free of charge — no questions asked.

Common questions

Questions we hear most

Will heavy tarnish reduce my offer?

No. Tarnish is a surface oxidation layer that has no effect on XRF readings or silver weight. Whether your piece is bright or black, the offer is based on the underlying metal content. We see heavily tarnished items every day.

What if my coins have verdigris or corrosion?

Active corrosion (green deposits, pitting, flaking) on silver is different from tarnish. It can indicate environmental damage but usually doesn't affect the bulk silver content significantly. Send items as they are — we'll assess them and explain what we find.

Should I wipe down my items before packaging?

There's no need. Package your items in the foam provided and send them. We handle all assessment in our facilities. Wiping coin surfaces in particular carries a risk of surface damage — leave everything as found.

I've already cleaned my coins — have I damaged them?

It depends on the method used and the coins involved. If they're common-date bullion types (Britannias, standard Morgans, common pre-decimal), cleaning is unlikely to have changed the offer materially. If they were rare dates or proofs, contact us before sending to discuss.

What about cleaning silverware for a better appearance?

Silverware sold for melt is assessed purely on weight and purity — appearance doesn't affect the offer. If you'd like to retain some pieces and sell others, send everything and accept or decline individual items based on the offer.

Get Started

Send your silver exactly as it is — tarnish and all

Request your free insured pack and send your silver without any preparation. Our XRF testing reads through tarnish to give you a precise, fair offer within 24 hours.

0800 014 8323