Concierge Prodiam replies within 24 hours, Mon–Fri. Insured overnight delivery across South Africa, and insured worldwide dispatch.

Prodiam

Loose Diamonds · Bedfordview bench · South Africa

Loose diamonds for sale in South Africa, cut in-house, independently certified.

Buy GIA-certified loose diamonds for sale direct from the South African bench that cut them, natural stones only, in any size we cut or source to order, at wholesale prices because we cut them ourselves rather than buy them in.

Brief us on a stone Book a private viewing →

“Wonderful products and such great quality. Highly recommend this company.” Loryn S., Google review

Sample of 119 stones · not the whole book

Loose diamonds currently on the bench.

Recent pieces, ready to view by appointment. What you see here is a working selection, never the full range: far more crosses the bench than we publish, and a number of higher-value stones are presented privately rather than listed. If the stone you want is not below, brief us on it; that is how most of our diamonds actually sell.

A few exceptional stones are presented privately rather than priced on the public catalogue; ask about any of them and Darren quotes you directly. Trade accounts see ex-VAT pricing on the trade portal. Trade application →

The Prodiam promise

The quote is free. So is walking away.

Ask us to quote any stone or ring and you get a firm figure in writing within 24 hours, VAT inclusive, with the trade-offs explained in plain English. It costs nothing and commits you to nothing: no deposit, no account, no follow-up campaign. Worst case, you learned the honest number and bought elsewhere better informed.

We actually want you to compare. Buying well means weighing options; it is how we buy rough at the viewings, and it is how you should buy a diamond. Bring any written quote and we will price it like-for-like, and if we cannot beat it, we will tell you so bluntly. Either way you leave knowing where you stand.

One more thing worth knowing: this site shows a selection of our stock, never the full range. Far more passes across the bench than we ever list, so if the exact stone or design you want is not here, ask us for it. It is usually one message away.

Get my written quoteWhatsApp Darren instead →

Prefer to talk it through first? That works too. Tell us how you like to be reached, and that is how we will reach you.

Concierge house, not a catalog

Selected stones. The bench reaches further.

What you see is a fraction of what is moving through the Procut DCW bench. We source and polish any natural diamond, any shape, any carat, any colour and clarity, certified by GIA or EGL. Most pieces above R 500 000 are presented privately, never published. Tell us what you want and we bring it to the viewing room within days.

De Beers DBCM Emerging Beneficiation Customer since 2019. DGJASA (formerly the DDCSA) bourse member. SADPMR-licensed. Procut DCW polishes with rounds regularly earning the GIA Excellent cut grade. Stones are certified by GIA or EGL.

Provenance

Each stone’s journey, end to end:

  1. 1 Rough sourced direct from a De Beers DBCM viewing in Johannesburg, or from SA tender houses at Kimberley, Wolmaransstad, Schweizer Reneke, or the State Diamond Trader.
  2. 2 Polished in-house at Procut DCW in Bedfordview. Round brilliants cut to GIA Excellent; fancies cut to optimised proportions for the rough on hand.
  3. 3 Certified by the GIA. Cert PDF available per stone on request.
  4. 4 Kimberley Process documented from rough to polished. Beneficiation Licence audited under the SA Diamonds Act 1986.
  5. 5 Sold and delivered by Prodiam Trading, either through a trade account or by private viewing in Bedfordview, with full paperwork and insured overnight courier delivery anywhere in South Africa.

  • GIA & EGL certified

    Every loose stone certified by the GIA or EGL. Cert PDF supplied per stone.

  • Insured delivery, SA & worldwide

    Overnight across South Africa via Brink’s, G4S or our nominated jewellery courier. Insured worldwide dispatch via Ferrari Group and FedEx Custom Critical.

  • Same-address GIA verify

    GIA South Africa office is in our building. On-the-spot re-grading on request before settlement.

  • 14-day in-person exchange

    In-person sales at the viewing room come with a 14-day exchange courtesy on stock pieces. Distance-sale CPA cooling-off applies.

Delivery & insurance

Insured. Overnight. Door to door.

  • South Africa

    Insured overnight delivery via Brink’s, G4S, or our nominated jewellery courier. Tracked, signature on receipt.

  • International

    Ferrari Group or FedEx Custom Critical, jewellery-grade insured. 2–5 working days, full customs paperwork prepared.

  • In person

    Hand-delivered by Darren or signed across at the Bedfordview viewing room. Original ID matched at hand-over.

  • Cover

    Insurance is included up to invoice value. Extra cover available on request before dispatch.

Buying loose diamonds in SA

Loose diamonds: common questions.

Where can I buy loose diamonds for sale in South Africa?

Prodiam sells loose diamonds direct from its cutting bench in Bedfordview, Johannesburg, and delivers insured overnight anywhere in South Africa, Cape Town, Durban, Pretoria, Gqeberha, Bloemfontein and beyond. Because the stones are cut in-house at Procut DCW rather than bought in from a wholesaler and marked up, the per-carat price is set at the bench, not at retail.

Buy in person by appointment, or remotely after a live video viewing of the stone on the daylight tray.

Are loose diamonds cheaper than a diamond already set in a ring?

Almost always, yes. A loose diamond is priced on its own merits, carat, colour, clarity and cut, with no setting labour, no mounting metal and no retail markup folded in. Buying the loose stone first lets you verify the GIA certificate against the diamond, agree the price, and only then commission the setting.

Prodiam can set the loose diamond you buy into a bespoke ring or pendant on the same bench, so the centre stone and the finished piece never leave one roof.

Do your loose diamonds come with a GIA certificate?

Yes. Every loose diamond is GIA or EGL certified, and the certificate PDF is emailed before any settlement. The GIA report number is laser-inscribed on the girdle, so you can match the inscription to the report under a loupe and run the number against gia.edu/report-check yourself. Every rough parcel is also Kimberley Process documented, so provenance is traceable from rough to polished stone.

How much do loose diamonds cost, and can I see the price?

Most stones on this page list their full ZAR price, VAT inclusive. A small number of exceptional stones are presented privately: ask about any of them and Darren quotes you directly, in writing. Pricing is benchmarked to the Rapaport list, wholesale-direct, because the stone is cut in-house rather than bought in; trade accounts see ex-VAT pricing on the trade portal.

Can I buy a loose diamond remotely if I am not in Johannesburg?

Yes. Most national buyers never set foot in Bedfordview. You receive the GIA report, high-resolution loupe photography and a 360° video, then a live video viewing of the stone under microscope. After FICA verification and ZAR EFT settlement, the diamond is dispatched insured overnight via Brink’s or G4S, with a 7-day Consumer Protection Act inspection window on unset stones.