Sell certified diamonds
Sell your GIA, IGI or HRD certified diamond.
A certificate number is enough for us to give you a precise indication within minutes — no need to remove a stone from its setting before you decide.
★ 4.9 / 5 Trustpilot
Feefo Platinum
GIA Member
Rapnet Trader
BJA Accredited
Est. 1976 · Family-run
In brief
A certified diamond can be sold to a Rapnet-member buyer within 24–48 hours of accepting an offer. Provide the GIA, IGI or HRD report number, post the stone in our free insured Diamond Pack, and we transfer payment by bank within hours of confirmation.
What we look for
Specifics matter.
- GIA reports — the gold-standard, attracting our top tier of pricing
- IGI and HRD reports — accepted at full trade pricing
- EGL reports — accepted with a small adjustment vs GIA equivalent
- Triple-Ex (Excellent cut, polish, symmetry) commanding a premium
- Nil to Faint fluorescence preferred; medium / strong priced accordingly
How we price it
Transparent fundamentals.
Certified stones price closest to Rapaport benchmarks. We discount for fluorescence, sub-Triple-Ex cut grades, and any treatments noted on the report. Our offer is always shown alongside the working — you see exactly how we got there.
Recent purchases
Real prices we’ve recently paid.
Why people sell
An ordinary, often emotional decision.
Sellers of certified stones are usually clear about value — they want the most efficient route from stone to cash without a retail markdown. Direct-trade buyers like us are designed for exactly that.
Common questions