Diamond Sourcing to Specification · Bedfordview, Johannesburg
Source any GIA-certified diamond, to your exact spec.
See the diamonds on the bench now, or set your spec (shape, carat, colour, clarity, cut and budget) and we source any GIA-certified natural diamond and quote a single, fully-landed price in Rands.
See diamonds in stock Source to your spec → Send us a spec →
In stock now · ready to view by appointment
Diamonds on the bench today
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Only natural diamonds
Mined-Earth, never lab-grown. Kimberley Process documented from the mine of origin.
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GIA & EGL certified
Every loose stone certified by the GIA or EGL. Cert PDF supplied per stone.
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Insured overnight delivery
Brink’s, G4S or our nominated jewellery courier across South Africa. Ferrari Group / FedEx Custom Critical international.
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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.
Prefer to describe it in your own words? Tell us in plain English
Optional shortcut
Describe your dream diamond
Type what you are after in plain English. We read it back and set the filters for you. For example: “round, around 1.5 carat, near-colourless, eye-clean, under R120k”. Or skip this and use the filters below.
Search the certified inventory
No diamonds match that exact spec.
Loosen a filter (widen the carat range, drop the colour or clarity a grade, or lift the price ceiling) or send us the spec and we will hand-source it for you.
Send us your spec →Tell us your spec and we will quote within 24 hours.
Live search is being activated. In the meantime, the fastest way to find your diamond is to send Darren the spec directly: shape, carat, colour, clarity, cut and budget. We search the certified inventory by hand and come back with options and a firm ZAR price.
Prices are live (current wholesale plus exchange rate, updated today) and every diamond is GIA-certified natural, never lab-grown. We show you the gemmology and the Rand price; the full report follows on reserve.
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.
GIA-certified, natural, and verifiable
Prodiam works in natural, mined-Earth diamonds only (never lab-grown) and we feature GIA-certified stones so you can compare like with like on the grades that matter: colour, clarity, cut, polish, symmetry and fluorescence. 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 search a global inventory of GIA-certified natural diamonds against it in real time. Each result shows the full gemmology and a single, fully-landed ZAR price, wholesale-direct, with no retail counter markup. 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. If live results are still being activated, send us the spec and we quote within 24 hours.
Is the price I see the final price, in Rands?
Yes. Every price shown is a real, live ZAR figure, 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, excl. VAT, before any work begins, and we never show an invented or placeholder price; if a stone has no live price it is simply not listed.
Are the diamonds GIA certified and natural?
Yes. Prodiam sources natural, mined-Earth diamonds only, never lab-grown, and we feature GIA-certified stones. Each diamond carries its own independent laboratory report; you receive the full report once you reserve the stone, and you can verify the report yourself against the GIA 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.