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Sell to Prodiam · Diamond buyers, Johannesburg

Sell my diamond, the cutter-direct way.

Sell your diamond in South Africa to the bench that cuts them, not a retail counter that on-sells them. Loose certified diamonds, an engagement ring, gold of any karat, tennis bracelets, pendants, signed pieces, whole estates, single inherited stones. Most jewellers buy second-hand well below true market worth. They have to: they do not cut, they on-sell. We do cut. We re-set. We re-supply. We refine the metal in-house. So we can pay closer to honest market, the diamond against the Rapaport sheet on the day, the gold against the LBMA spot price.

Submit your piece for valuation Or trade up →

Why sell to Prodiam

Six reasons it’s the better number when you sell a diamond in Johannesburg.

What we buy

If it is gold, a natural diamond, or jewellery containing either, we buy it.

The process

From submission to cleared funds, four steps.

  1. 01

    Submit photos & papers

    Use the form below to send clear photos of the piece (front, side, hallmark / inscription). Attach any GIA / EGL / IGI / HRD certificate. Note carat weight, colour, clarity, shape, and anything you know about the piece’s history.

  2. 02

    Indicative valuation, in 48 hours

    We respond with a Rapaport-benchmarked indicative range, in ZAR, with the assumptions written out. Free, no obligation.

  3. 03

    Inspection & firm offer

    Bring the piece in to the Bedfordview viewing room or send it via insured Brink’s / Ferrari Group courier. We inspect under loupe and microscope, confirm cert authenticity, and issue a firm offer.

  4. 04

    Cleared funds

    On acceptance, FICA-compliant settlement is initiated. SA EFT within 72 hours. SWIFT international within 5 working days. Full paperwork, including SARS-compliant invoice and CGT considerations explained.

Selling a diamond in South Africa

Frequently asked questions.

How do I sell a diamond in South Africa?

Send clear photos and any GIA, EGL, IGI or HRD certificate through the form on this page. We reply within 48 hours with a Rapaport-benchmarked indicative range in ZAR, with the assumptions written out. If you accept, you bring the stone to our Bedfordview viewing room or send it insured via Brink’s, we inspect under loupe and microscope, confirm the cert, and issue a firm offer. FICA-compliant settlement clears in about 72 hours.

Where can I sell a diamond in Johannesburg for a fair price?

Because Prodiam is a working cutting house in Bedfordview, Johannesburg, we re-cut, re-set or re-supply the stones we buy rather than on-selling them as-is. That lets us pay against the Rapaport sheet on the day rather than the heavy second-hand discount most retail jewellers apply. You can sell loose diamonds, an engagement ring, or any piece containing gold or natural diamonds, with the valuation benchmarked to a public reference, not an opaque margin.

How much will you pay for my diamond?

Every offer is anchored to the Rapaport price list on the day, with documented adjustments for cut, certification, fluorescence, and the current South African market spread. We do not quote a flat headline percentage, the number depends on the stone. What we can promise is that the working is shown to you: you see the per-carat reference and the adjustments, so the offer is transparent rather than take-it-or-leave-it. Prices are on application, never a blind lowball.

Do I need the GIA certificate to sell my diamond?

It helps, but it is not essential. If your stone has no certificate, we can submit it to GIA South Africa, in the same building as our bench, and re-grade it before final settlement, which is faster than couriering it elsewhere. With a certificate to hand we can give a tighter indicative range up front. Either way the valuation is Rapaport-benchmarked and the settlement is FICA-compliant.

Can I sell an engagement ring or loose diamonds I inherited?

Yes. We buy loose certified diamonds, engagement rings, eternity bands, tennis bracelets, pendants, and whole or partial estates. For inherited and estate pieces we work with executors, deceased-estate attorneys, and beneficiaries, with FICA-compliant settlement direct to the estate account and a photographic record of every piece valued. You must be the legal owner or hold written authority to sell on the owner’s behalf.

How are diamond buyers in Johannesburg different from a pawnshop?

A pawnshop or second-hand dealer values your diamond at its resale-as-is risk, often only a fraction of its true worth. As a manufacturer-direct cutting house we value the stone itself, because we can re-cut or re-supply it, and we settle by verified bank transfer with full FICA and SARS-compliant paperwork. The trade-off is that we work by appointment and to a Rapaport benchmark, not instant cash over a counter.

Submit a piece

Tell us what you have.

Detail what you’d like us to value. Photographs by attachment on the email reply we send back, or via WhatsApp once we’re in touch.

Who you are
The piece

Optional. We’ll respond with our own Rapaport-benchmarked range either way.

Acknowledgements

Indicative valuation reply within 48 hours, Mon–Fri. All submissions confidential. No obligation.