Online buy-back specialists
Online specialists usually pay the most for everyday gold and diamond jewellery, because their overheads are low and pricing is tied to the live market. The best offer a free valuation, transparent figures, insured postage both ways, and free returns if you decline.
Look for an AI-plus-gemmologist valuation: it values the brand, stones and craftsmanship. Not just the metal, so branded and stone-set pieces fetch more than scrap.
Pawnbrokers
Pawnbrokers give you cash the same day, which is their main advantage. The trade-off is price: to cover their risk and margin they typically pay below what an online specialist or auction would, especially on branded pieces.
High-street jewellers
Some jewellers buy second-hand stock, but only what fits their shelves, and they need resale margin, so offers vary widely and many won't buy at all. Convenient if you have a trusted local jeweller; rarely the top price.
Auctions
Auction houses suit rare, antique or sought-after designer pieces that benefit from competitive bidding. Expect seller's fees (often 10–25%), a wait of weeks, and no guarantee of the hammer price. Not ideal for standard gold.
What to check before you sell
Whoever you choose, confirm five things: transparent pricing (every figure shown), insured postage both ways, free, no-obligation returns, independent reviews (e.g. Trustpilot), and a clear verification step (XRF for metal, a gemmologist for stones).