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Not sure where to start? That is completely normal.

Most people buying a diamond are doing it for the first time, and the whole thing can feel like a lot. You do not need to know your colour from your clarity before you talk to us. Tell us roughly what you are after and what you would like to spend, and we will do the hard part with you. There is no pressure and no obligation, and we would genuinely rather you asked than guessed.

Or send us a note →

We have plenty in the safe right now

Not everything has to be ordered in. There is real stock sitting in Bedfordview that you are welcome to come and look at properly, under a loupe, in daylight, with someone who can explain what you are seeing. Some of it is on the loose diamonds page, but that page is only a slice of what is in the safe, so the quickest answer is always to ask us what we have. Come past and take a look, or message first and we will have a few ready for you.

We read the report before you buy, and the stone before you keep it

Be clear on what is what. Anything in our safe in Bedfordview you can see on the loupe yourself, with us, before you spend a cent. Anything on this page is sourced: it sits with the supplier until it is ordered, so nobody can put it under a loupe today, and we will not pretend otherwise.

What we do instead is read the certificate properly. Where the inclusions sit, whether the fluorescence is likely to turn it hazy, whether the proportions add up. We ask the supplier for more images where they exist. And when the stone lands here we check it before it goes to you, so nothing arrives that we would not have bought ourselves. , or put it to the AI assistant on this page, which reads these reports all day.

Buy the stone, then let us mount it

Plenty of people buy the diamond first and decide on the setting later, and that is a perfectly good way to do it. Once the stone is yours, tell us what you have in mind and the same bench that does all our own work will build it around that stone. Ring, pendant, earrings, a remake of something you have seen. .

Sourced stones are bought before anyone has seen them

A sourced diamond sits with our supply partner, not in our safe, so nobody has held it yet, us included. What you do have is the full laboratory report: every measurement, grade and proportion on this page comes off that certificate, and the report number is yours to check with the lab before you pay anything. If that feels like a lot to take on trust, that is fair enough: send us the stone and we will tell you honestly what we make of it first.

A sourced stone cannot come back

Once we buy one in for you it is yours, so there is no refund or exchange on a sourced diamond. We would far rather you took another week and asked us five more questions than felt rushed into it. If you want to be certain before you commit, talk it through with us. That is exactly what we are here for, and it costs you nothing.

Sourcing takes a little time

These stones travel from wherever they are sitting. Each card shows the working days that particular one needs, and you can sort the whole list by what arrives soonest. If you need a diamond in your hand this week, that means our own stock instead, and we almost certainly have something: message us and ask.

Buy a sourced stone here, or message us for ours

A sourced diamond goes through the checkout on this site at the price shown, and that price is everything landed in South Africa: the stone, VAT, getting it here, and the card fee, in one number with nothing to add afterwards. The diamonds already in our safe are not sold through the checkout, so message us for those and we will price them for you directly.

Any stone here can become a finished piece

A loose diamond is a starting point, not the end of it. Anything you find here can be set into a ring, a pendant or earrings by the same bench that does all our own work. Tell us what you have in your head, even roughly, when you message us, and we will design it around the stone rather than the other way round.

Whatever you are looking for, we will find it

Between the stones in our safe and everything our supply can reach, there is a diamond here for what you want to spend. If you have not found it on this page, it is because we have not spoken yet. Tell us the occasion, the budget and anything you already know they like, and we will come back with real options and a straight opinion on each one.

Browse what is in the safe →

Every diamond on this page is a natural diamond. We do not sell laboratory-grown stones, and none appear in either view above.

Two ways to get your diamond

On the bench now

Diamonds we physically hold and cut in-house in Bedfordview, ready to view by appointment. No wait, no sourcing lead time.

See loose diamonds in stock →

Sourced to your spec

Send your spec and Prodiam quotes matched certified stones by hand, one fully-landed price in Rands, within 24 hours. Reserved on a deposit; full laboratory report on reserve.

Back to the search →

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 quote

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.

  • Natural diamonds only

    Mined-Earth, never lab-grown, by conviction, not price. Kimberley-Process documented from the mine of origin. Why we don’t sell lab-grown →

  • 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.

  • 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.

In-stock inventory · on the bench today

168 certified diamonds on the bench, priced and ready

Send us a spec →

Every bench stone is listed with its grading report.

168 GIA- and EGL-certified natural diamonds are on the Bedfordview bench right now, each with its report number, full ZAR price and a verify-at-GIA link. If the stone you want is not among them, send the spec and Prodiam sources it by hand with a firm quote within 24 hours.

View the diamonds on the bench →

Sourced to your spec, cut and set under one roof

Most diamond search tools end at the cart. Ours starts a conversation with a cutting house. When you find the stone you want, you are not buying from a faceless marketplace. You are commissioning Prodiam, a director-led South African diamond dealer and cutting house in Bedfordview, Johannesburg.

We reserve the diamond, send you its full GIA report, HD photography and 360° video, and only then, once you have seen it and confirmed, do we cut, set or ship. The same bench that polishes our loose diamonds can set your sourced stone into a bespoke engagement ring, a pendant or a pair of earrings.

Why the Rand price you see is the real price

Every figure on this page is a live ZAR price: the current wholesale stone price, converted at today's exchange rate, with our margin already built in and rounded up to absorb currency movement. There is no retail counter premium folded in afterwards, and there is no separate per-carat number to negotiate from. Because we work direct, you see a wholesale-led price, not a showroom one.

We never display an invented or placeholder price. If a diamond has no live price, it simply is not listed, and you can always send us the spec for a hand-prepared quote.

Certified, natural, and verifiable

Prodiam works in natural, mined-Earth diamonds only (never lab-grown), and every stone is independently certified so you can compare like with like on the grades that matter: colour, clarity, cut, polish, symmetry and fluorescence. Each listing names its laboratory, most commonly GIA. You receive the full laboratory report when you reserve the stone, and you can verify it yourself before you settle.

If you would like, we can request light-performance imaging (ASET or Hearts-and-Arrows) on a stone, the one axis a cutting house can speak to that an online store outsources. Read the 4Cs of diamond grading and how to read a GIA report before you set your spec.

Sourcing a diamond: common questions

How does sourcing a diamond to my spec work?

You set the shape, carat range, colour, clarity, cut, fluorescence and your budget, and we work the brief by hand against the bench and the wider supply lines: De Beers viewings, tender houses and thirty years of trade relationships. You get a short set of matched certified options, each with the full gemmology and a single, fully-landed ZAR price, wholesale-direct, with no retail counter markup, within 24 hours.

When a stone is right, you reserve it with a deposit, we send you the full GIA report and HD photography and 360 video, and you confirm before anything is cut, set or shipped.

Is the price I see the final price, in Rands?

Yes. Every price shown is a real, final figure in rands: the current wholesale stone price converted at today's exchange rate with our margin already included, rounded up to protect against currency movement. There is no separate per-carat or wholesale figure to back into, and no hidden retail premium added later.

We quote firm, VAT inclusive, before any work begins, and we never send an invented or placeholder price; every figure you receive from us is a written quote Prodiam will stand behind.

Are the diamonds certified and natural?

Yes. Prodiam sources natural, mined-Earth diamonds only, never lab-grown. Every stone carries its own independent laboratory report, most commonly GIA and otherwise IGI or HRD, and each listing states which. You receive the full report once you reserve the stone, and you can verify it yourself against that laboratory's own report-check service before you settle.

The site shows you only the certified grades, shape, carat, colour, clarity, cut, polish, symmetry and fluorescence, so you compare like with like.

Can you cut, set and deliver the diamond I source?

Yes, that is the Prodiam advantage. We are a cutting house in Bedfordview, Johannesburg, directed by Darren Etkind, not a drop-ship store. We can supply the loose stone, or cut and set it into a bespoke engagement ring, pendant or pair of earrings on our own bench, and request light-performance imaging such as ASET or Hearts-and-Arrows on the stone for you.

The finished piece is delivered insured overnight anywhere in South Africa, with a written valuation for insurance.