Sell loose diamonds
Sell loose diamonds — single stones or parcels.
As daily Rapnet traders we buy single loose diamonds and parcels of any size, certified or uncertified. Direct trade access means you skip the middleman markdown.
★ 4.9 / 5 Trustpilot
Feefo Platinum
GIA Member
Rapnet Trader
BJA Accredited
Est. 1976 · Family-run
In brief
Selling loose diamonds in the UK works best through a direct-trade buyer with Rapnet access. Send your certificate number for an immediate quote, or post the stone in our free insured pack for an in-person valuation and same-day payment.
What we look for
Specifics matter.
- GIA, IGI or HRD-certified single stones from 0.30ct upward
- Parcels of melée and small goods (we’ll quote per carat)
- Fancy shapes — princess, oval, cushion, emerald, pear, marquise
- Old European and old mine cuts — strong antique market
- Investment-grade stones (D–F, IF–VVS2) priced at trade premium
How we price it
Transparent fundamentals.
Loose stones are priced at the closest Rapaport benchmark for their shape, size, colour and clarity, less a small wholesale margin. Investment-grade D–F / IF–VVS2 stones trade at near-Rapaport. Lower grades and fancy shapes carry sharper discounts but still trade at fair market value.
Recent purchases
Real prices we’ve recently paid.
Why people sell
An ordinary, often emotional decision.
Estate liquidation, dealer downsizing, an inheritance of loose stones with no setting in mind. Our trade channel gives loose goods their full market value rather than a retail-buyer’s discount.
Common questions