How do I measure my wrist for a bangle or bracelet?+
For a bangle, tuck your thumb into your palm and measure around the widest part of your hand — the bangle must pass over it. For a chain or tennis bracelet, measure your wrist and add 1–2cm. Sellers list inside diameter or length on their adverts so you can compare.
What is a tennis bracelet worth second-hand?+
It depends almost entirely on the diamonds. A certified 2ct diamond tennis bracelet in 18ct gold might sell for £800–£2,000 second-hand against £3,000+ new. Uncertified stones trade much lower, so a certificate from GIA or IGI matters more here than almost anywhere else.
How do I check a hallmark is genuine?+
A genuine UK hallmark is struck (or laser-marked) by one of the four UK Assay Offices — London, Birmingham, Sheffield or Edinburgh — and shows the metal, its fineness, the assay office mark and usually a date letter and sponsor's mark. Compare the marks on the item with the reference tables published by the Assay Offices, and ask the seller for a clear close-up photo. A hallmark that is blurred, misspelt or in the wrong place is a red flag.
How do I avoid scams when buying bracelets online?+
View the item in person before any money changes hands — or use a reputable escrow for high-value pieces — keep all messages inside JewelleryTrader so there is a record, and never pay by bank transfer, gift card or crypto to someone you have not verified. For precious metal, always check the hallmark against the Assay Office records, and for certified stones verify the certificate number directly with GIA or IGI. Every JewelleryTrader seller completes a photo-ID and live selfie check, verified accounts carry a badge, and you can report an advert from the listing page.
How do I know what my jewellery is worth before selling?+
Get an independent valuation first — many high-street jewellers value items for a small fee, and the Institute of Registered Valuers keeps a directory of accredited valuers. Then compare live asking prices for similar pieces on JewelleryTrader so your price reflects what buyers are actually paying. Remember that insurance (replacement) valuations are usually two to three times what a piece will sell for second-hand.