Unique Engagement Rings · Bedfordview, Johannesburg
Unique engagement rings, designed one of a kind.
Unique diamond engagement rings from Prodiam are designed around your own brief. Bring a picture, a story or a design idea, then choose the natural diamond, metal and details with our Bedfordview workshop before agreeing the complete ring quote.
One-off commissions from the Prodiam bench
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2.05 ct heart, fancy yellow -
2.04 ct radiant, three-stone
Past one-off commissions, photographed at the bench. Yours is designed from a blank page and made to order; nothing shown is offered as stock.
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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 →
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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.
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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.
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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.
Diamond price guidance, captured 8 September 2026. These figures describe samples of sourced listings, with VAT and delivery for the stones included. They are not current stock guarantees. Settings and making are additional where jewellery is discussed; confirm the complete written quote.
What an engagement ring costs, by centre stone
An engagement ring's total is the centre diamond plus the setting, metal and making. In our captured H-colour sample, a one-carat stone was about R61 300, a 1.5ct about R148 700 and a two carat about R300 500. These are diamond-only guide prices at VS1–VS2 clarity, with an Excellent cut filter and no fluorescence. We quote your complete ring before work begins.
| Centre stone | H-colour guide | J-colour guide | At capture | |
|---|---|---|---|---|
| half carat | R12 400 | R10 500 | 34 053 | See these → |
| 1 carat | R61 300 | R41 700 | 25 599 | See these → |
| 1.5 carat | R148 700 | R100 400 | 11 390 | See these → |
| 2 carat | R300 500 | R198 300 | 5 877 | See these → |
| 3 carat | R880 300 | R574 500 | 2 060 | See these → |
Both columns show sampled guide prices, not an entry price or a complete ring. The count includes all grades in each weight band at capture. Set a budget for the whole ring, then choose the diamond and setting together.
No two diamonds are the same
A table describes a market, not a stone. Two diamonds identical on paper can differ by a third in price and both figures be right: how well the stone is actually cut and how much light it returns, where the inclusions sit and whether the eye finds them, how strongly it fluoresces, and how keenly that one happens to be priced against the international trade benchmark on the day. We check every stone against that benchmark before we show it to anybody, and the number that matters is the one quoted in writing on the stone you actually choose.
Ask us what your budget buysSearch the live inventory →
Captured 8 September 2026; guide figures rounded up to the next R100. Colour and clarity tables use sampled medians and percentile bands; rows without a measured range may use a limited lower-priced sample. Prices and availability can change. Your written quote identifies the actual stone and all inclusions.
One of a kind, by design
A unique ring is not a standard setting with a small twist. It is a ring designed for one person, from the stone outward, so that no one else has quite the same thing. That is only possible when the people choosing the diamond and the people building the ring are the same people.
We start from a sketch, a reference, a feeling or simply a sense of her, and design with you until the ring is unmistakably hers.
Where uniqueness comes from
- The stone, an unusual shape, an old cut, an unusual ratio, or a fancy colour such as yellow, which makes a ring individual before the setting is even drawn.
- The setting, asymmetry, mixed metals, an unexpected gallery, a bezel where a claw is expected, or a hidden detail only she will know.
- The meaning, an engraving, a birthstone accent, a motif that means something to you both, worked into the design rather than added on.
Fancy colour and unusual stones
Nothing individualises a ring faster than the diamond itself. A fancy yellow centre, a heart or marquise outline, or an old-cut stone with its softer flashes all read as personal and rare. We source and show you GIA-certified options, including fancy colours, and design the setting to make the most of what makes your stone different. If you have an heirloom diamond, that can be the unique heart of the ring.
| Where to be unique | What we make to order |
|---|---|
| Centre stone | Fancy colour, unusual shape, old cut, or a reset heirloom |
| Setting | Asymmetric, mixed-metal, bespoke gallery, hidden detail |
| Personalisation | Engraving, accent stones, a motif that is yours |
| Metal | 18k white, yellow or rose gold, platinum, or mixed |
| Certification | Natural diamonds, GIA / EGL certified; report supplied |
Pricing is on application: the stone and the complexity of the design drive the figure, and you receive a firm ZAR quote, including VAT, before any work begins.
How a one-off is designed and made
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Brief
Your idea, reference images, the stone or colour you are drawn to, budget and deadline. We respond within 24 hours.
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Design together
We develop the design with you, and source GIA-certified stones, including fancy colours, to suit it.
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Build & cast
The bespoke setting is built and cast in your chosen metal, with any unusual detailing worked by hand.
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Set & finish
The diamond is set, the ring finished to the design, and checked under loupe and microscope.
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Hand-over
Presentation at Bedfordview by appointment, or insured overnight courier nationwide, with certification and a written valuation.
When you are ready, start your design and Darren will come back within 24 hours, or read how a custom commission works end to end.
Unique engagement rings: common questions
What makes an engagement ring unique?
Uniqueness comes from three places: the stone, an unusual shape or a fancy colour rather than a standard round; the setting, an asymmetric, mixed-metal or personally detailed design rather than a catalogue mount; and the meaning, details that belong only to you. A truly one-of-a-kind ring is designed from a blank page, not chosen from a tray, which is exactly how we work.
Can I design my own engagement ring?
Yes, that is the heart of what we do. You bring the idea, a sketch, a feeling, a reference image, or just a sense of her, and we design with you, then cut and build it on our own bench. Because the diamonds and the workshop are under one roof, almost anything you can describe can be made, and you see it take shape before you commit.
Can you set a fancy-colour or unusually shaped diamond?
Yes. A fancy yellow, a heart, a marquise, an old cut or an unusual ratio all make a ring instantly individual, and we design the setting around the character of the stone. We will source and show you GIA-certified options, including fancy colours, and build the ring to make the most of whatever makes your diamond different.
How long does a one-of-a-kind ring take to make?
A bespoke ring usually takes a few weeks from agreed design to hand-over, depending on the complexity and on sourcing the right stone. We give you a realistic timeline up front and work to your date; rush commissions are sometimes possible. The design conversation is where the time is best spent, so start early if you can.
Can you make a unique ring if we are not in Johannesburg?
Yes. Clients design one-of-a-kind rings with us from Cape Town, Durban, Pretoria, Gqeberha and across South Africa. The whole collaboration happens by video and WhatsApp, you approve the design and the stone, and the finished ring arrives insured and overnight nationwide, with certification and a written valuation.