Mine-to-finger specialists. GIA certified natural diamonds, lab grown diamonds, and rare fancy colour stones — every one conflict-free. Luxury engagement rings and bespoke jewellery, personally guided by David. No middleman. No retail markup.
One call. No obligation.
25+ years guiding South Africans to the diamond of their dreams.
A South African diamond house since 1999.
For over 25 years, Diagem has guided South Africans through every step — from selecting a GIA certified loose diamond to crafting the luxury engagement ring or bespoke piece that holds it. We're not retailers. We're diamond cutters and dealers, sourcing natural diamonds, lab grown diamonds, and rare fancy colour stones directly from mines and trading houses across South Africa and the world. Every Diagem diamond is conflict-free.
We polish and shape our own inventory in South Africa. From rough to brilliant — the journey of every Diagem stone passes through our hands.
Members of the Diamond Dealers Club of South Africa and the World Federation of Diamond Bourses. We can source the exact stone you want, wherever it is.
No retail markup. No showroom rent. No commission-driven salespeople. The savings of skipping every middle layer are passed straight to you.
Whether you know exactly what you want or have only a vague idea, David will guide the whole journey — at no extra charge.
GIA certified natural diamonds, lab grown diamonds, and rare fancy colour stones. Every loose diamond conflict-free and fully certified. Tell David what you're looking for — carat, colour, clarity, budget — and we'll source it or cut it ourselves.
Luxury engagement rings, eternity bands, pendants, redesigns of pieces you already love. 3D CAD render in 48 hours. Hand-finished in our Johannesburg workshop. Design and manufacture included when you buy the stone from us.
We'll beat any South African written quote.
Send us a written quote from any South African jeweller. Because we cut our own stones, source direct, and skip the retail layer, we can almost always match or beat it. This isn't a discount game — there's just no-one else in the chain to pay.
From the first call to the finished piece in your hand. No pressure at any step.
A 10-minute call. Tell him what you're imagining. Phone, WhatsApp, or in person.
Visit our Johannesburg office to see curated stone options or 3D design renders in person.
Refine, compare, ask anything. Nothing moves to cutting or manufacture until you're certain.
Certified, insured, hand-delivered in Johannesburg or shipped nationwide.
No obligation at any step
After 25 years, I still answer my own phone.
Whether it's your first diamond or your fifth, I'll talk you through every option, every certificate, every price. No pressure to decide, no obligation to buy. Just an honest conversation about diamonds — and what makes one right for you.
— David, Diagem Diamonds
Have a written quote you'd like us to beat? Attach it below. David replies personally within one business day.
One call. No obligation.
The simplest way to start is a conversation. David is available six days a week.
Diagem Diamonds