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Diamond Sourcing to Specification · Bedfordview, Johannesburg
Search certified natural diamonds by your specification and budget. Compare the individual stone, grading report and VAT-inclusive rand price, then confirm availability and delivery with Prodiam.
Our stock moves faster than any website can keep up with, and our connections run wide, so ask us for anything you do not see here.
Search natural diamonds Send us a spec →
“Excellent service and best price in South Africa. Thank you.” Gaetano C., Google review
An AI assistant that works only from stones which already passed our Procut Screen, explains the trade-offs in plain English, and never pushes you past your budget.
Not ready to choose? No rush. or message a human. We would rather talk it through than sell you the wrong stone.
Filtered to your search.
Ask what is in the safe todayThese are hand-picked on the certificate: the cut, polish, symmetry, colour and clarity Prodiam will stand behind on paper. We have not had these stones in our hands, because they sit with the supplier until one is ordered, and we check every one properly when it lands. Switch to the full market if you would rather look yourself, and ask us about anything you find.
Want a diamond in your hand this week? These are sourced in, so they take a few days to arrive. We also have plenty sitting in our safe in Bedfordview that you can come and look at. WhatsApp us and we will tell you what we have, or browse the loose diamonds. Not sure what you are looking for? That is what we are here for. Just ask.
163 044 certified natural diamonds were recorded in the sourcing feed on 8 September 2026. Prices include VAT, shipping and payment costs. Use the live search to check current availability. Diamonds we hold in Bedfordview are listed separately under loose diamonds.
| Shape | Size | Count at capture | Lowest captured price |
|---|---|---|---|
| Round | 0.50 to 0.69ct | 18 668 | R8 100 |
| Round | 0.70 to 0.89ct | 9 881 | R13 600 |
| Round | 0.90 to 1.19ct | 13 080 | R24 400 |
| Round | 1.20 to 1.49ct | 2 550 | R40 300 |
| Round | 1.50 to 1.99ct | 4 759 | R88 900 |
| Round | 2.00 to 2.99ct | 2 659 | R177 700 |
| Oval | 0.50 to 0.69ct | 2 746 | R8 700 |
| Oval | 0.70 to 0.89ct | 2 115 | R14 500 |
| Oval | 0.90 to 1.19ct | 3 330 | R25 600 |
| Oval | 1.20 to 1.49ct | 1 533 | R44 900 |
| Oval | 1.50 to 1.99ct | 1 693 | R92 700 |
| Oval | 2.00 to 2.99ct | 1 099 | R180 300 |
| Cushion | 0.50 to 0.69ct | 1 063 | R10 200 |
| Cushion | 0.70 to 0.89ct | 1 732 | R15 500 |
| Cushion | 0.90 to 1.19ct | 3 959 | R25 600 |
| Cushion | 1.20 to 1.49ct | 1 112 | R44 900 |
| Cushion | 1.50 to 1.99ct | 2 712 | R92 700 |
| Cushion | 2.00 to 2.99ct | 1 453 | R180 300 |
| Princess | 0.50 to 0.69ct | 635 | R9 100 |
| Princess | 0.70 to 0.89ct | 1 128 | R14 500 |
| Princess | 0.90 to 1.19ct | 1 884 | R25 600 |
| Princess | 1.20 to 1.49ct | 423 | R44 900 |
| Princess | 1.50 to 1.99ct | 730 | R92 700 |
| Princess | 2.00 to 2.99ct | 257 | R182 100 |
| Emerald | 0.50 to 0.69ct | 1 683 | R8 400 |
| Emerald | 0.70 to 0.89ct | 1 453 | R14 500 |
| Emerald | 0.90 to 1.19ct | 3 026 | R25 600 |
| Emerald | 1.20 to 1.49ct | 833 | R44 900 |
| Emerald | 1.50 to 1.99ct | 1 553 | R92 700 |
| Emerald | 2.00 to 2.99ct | 1 025 | R181 200 |
| Pear | 0.50 to 0.69ct | 3 854 | R8 400 |
| Pear | 0.70 to 0.89ct | 2 678 | R14 500 |
| Pear | 0.90 to 1.19ct | 2 583 | R25 600 |
| Pear | 1.20 to 1.49ct | 645 | R44 900 |
| Pear | 1.50 to 1.99ct | 664 | R92 700 |
| Pear | 2.00 to 2.99ct | 457 | R180 300 |
| Radiant | 0.50 to 0.69ct | 717 | R8 400 |
| Radiant | 0.70 to 0.89ct | 1 094 | R14 500 |
| Radiant | 0.90 to 1.19ct | 1 273 | R25 600 |
| Radiant | 1.20 to 1.49ct | 333 | R44 900 |
| Radiant | 1.50 to 1.99ct | 702 | R92 700 |
| Radiant | 2.00 to 2.99ct | 440 | R181 200 |
| Marquise | 0.50 to 0.69ct | 1 530 | R9 700 |
| Marquise | 0.70 to 0.89ct | 576 | R14 500 |
| Marquise | 0.90 to 1.19ct | 743 | R27 200 |
| Marquise | 1.20 to 1.49ct | 215 | R65 700 |
| Marquise | 1.50 to 1.99ct | 249 | R138 600 |
| Marquise | 2.00 to 2.99ct | 185 | R236 400 |
| Asscher | 0.50 to 0.69ct | 228 | R8 800 |
| Asscher | 0.70 to 0.89ct | 282 | R16 300 |
| Asscher | 0.90 to 1.19ct | 927 | R26 400 |
| Asscher | 1.20 to 1.49ct | 194 | R44 900 |
| Asscher | 1.50 to 1.99ct | 457 | R92 700 |
| Asscher | 2.00 to 2.99ct | 271 | R191 500 |
| Heart | 0.50 to 0.69ct | 757 | R9 200 |
| Heart | 0.70 to 0.89ct | 1 158 | R14 500 |
| Heart | 0.90 to 1.19ct | 1 750 | R25 600 |
| Heart | 1.20 to 1.49ct | 192 | R44 900 |
| Heart | 1.50 to 1.99ct | 635 | R92 700 |
| Heart | 2.00 to 2.99ct | 273 | R181 200 |
Compare dated price examples for each cut, with links to check current sourcing options.
A sample of the inventory, captured 8 September 2026. Individual stones sell; the live search above is always current.
Searching the certified market
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.
Nothing on the bench matches that exact spec. Tell us what you are after, shape, carat, colour, clarity, cut and budget, and he goes through the certified inventory by hand and comes back with real options and what each one costs.
Rather fill in a form? Send it through the enquiry form and we will carry your spec across.
Every price shown is a real ZAR figure (current market plus today's exchange rate, our margin built in) and every diamond is certified natural, never lab-grown. Before any stone reaches this page it passes the Procut Screen: our bench's quality gate covering certification, cut class on rounds, polish and symmetry, clarity floors, sane proportions, honest pricing and declared fluorescence. Stones that fail are not shown at a discount. They are not shown at all.
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.
Chat to us on WhatsApp Or send us a note →
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.
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. Ask us about a stone, or put it to the AI assistant on this page, which reads these reports all day.
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. Talk to us about a setting.
A sourced diamond sits with our supply partner, so Prodiam has not yet inspected it in person. Start with its laboratory report: the listed measurements, 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.
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.
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.
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.
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.
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.
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
Browse individual diamonds and ask which are available to view in Bedfordview. Some are cut on our bench; others are sourced through the trade. Confirm the stone and appointment before travelling.
Search matching certified stones from our supply partners, or send us your specification. We confirm the individual diamond, report, availability and VAT-inclusive written quote with you.
The Prodiam promise
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 Prodiam 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.
Natural diamonds only
We sell natural diamonds and diamond-set jewellery. Ask us about the grading report and available origin documentation for your chosen stone. Why we don’t sell lab-grown →
Independent grading reports
The grading laboratory is shown per stone. Review its report and the individual diamond before choosing; sourced examples can include GIA, EGL and IGI.
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.
Prodiam loose-diamond catalogue
Compare the individual stone and recorded specifications.
The catalogue shows each diamond’s recorded grades, price or enquiry route, and grading-report details where available. Ask us to confirm availability, the full report and a viewing before you visit. If the right stone is not listed, send us your specification for a sourcing quote.
Browse loose diamonds →Prodiam is a diamond dealer and cutting house in Bedfordview, Johannesburg. Some stones are cut in-house; others are sourced as polished diamonds through the trade. This search helps you compare those sourcing options.
Review the individual laboratory report and ask for available photographs or video. Confirm the actual stone before ordering. You can buy a loose diamond or request a separate quote to set it into a bespoke engagement ring, a pendant or a pair of earrings.
Search results show the loose diamond’s rand price including VAT, sourcing delivery and payment costs. A jewellery setting is additional. Confirm availability and the final written quote before committing; dated example bands are labelled separately from individual search results.
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.
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.
Ask which photographs, videos or light-performance images are available for your chosen stone. GIA’s overall cut grade applies to standard round brilliants in its D-to-Z range; fancy shapes need their own proportion and appearance assessment. Read the 4Cs of diamond grading and how to read a GIA report before you set your spec.
Set your shape, carat range, colour, clarity, cut, fluorescence and budget to compare matching natural diamonds. Check each stone’s laboratory, report, price and delivery estimate. A sourced listing is a diamond offered through the trade, not a promise that it is already in Bedfordview. Ask Prodiam to confirm the actual stone, current availability and written quote before committing. If it will become jewellery, request a separate quote for the setting and making.
The search displays rand prices including VAT, sourcing delivery and payment costs. These are loose-diamond prices; a ring or other jewellery setting is additional and quoted separately. Confirm the selected stone, current availability, delivery and final written price with Prodiam before committing. Dated price examples elsewhere on the page describe their capture date and are not a current offer for a particular diamond.
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.
Yes. Ask for a complete quote for an engagement ring, pendant or other diamond-set piece around your chosen stone. The search lists polished diamonds; routine sourcing does not mean the stone needs to be cut again. Prodiam cuts diamonds in-house and also sources polished diamonds through the trade. Confirm the design, metal, setting, making, valuation and insured delivery in the finished-piece quote.
Extra photographs, video or light-performance images depend on what is available for that stone.
