Jewellery made for one person.
Custom pendants, earrings, bracelets and remodelled heirlooms — designed around certified diamonds and crafted to last generations.
Home / Bespoke Jewellery
The piece you can't find in a shop.
Some pieces simply don't exist on a retail shelf — a pendant in memory of someone, earrings to mark a milestone, an heirloom reborn as something you'll actually wear. Bespoke is how those pieces come to be.
Diagem designs and manufactures fine jewellery to order, set with the same certified diamonds we trade. Because the diamonds come direct and the work is done without a retail mark-up, a bespoke piece often costs less than a comparable ready-made one — while being entirely your own.
The most rewarding commissions are often remodels: a ring from a grandmother, a stone that hasn't been worn in decades, given a contemporary setting so it can be loved again. Bring the piece and the story, and we'll handle the rest.
A few of the things we make.
New commissions
Pendants, earrings, bracelets and dress rings designed from scratch around a certified diamond.
Heirloom remodels
Resetting inherited diamonds into modern pieces, preserving the sentiment and the value.
Matching sets
Coordinated pieces — ring, pendant and earrings — designed to be worn together.
Start with the diamond.
Every bespoke piece begins with the stone. Explore certified natural or lab-grown diamonds, or if it's a ring you're after, see our bespoke engagement rings. The diamond guide will help you understand quality before you commission.
New to Bespoke Jewellery? Here’s Exactly How It Works.
David guides you through the entire design process — from first idea to finished piece. Plain language, no obligation, no guesswork.
Call David
082 551 2103 — or WhatsApp. Share your idea, your budget, or even just a picture. He takes it from there.
Design Consultation
David walks you through options in plain language. No jargon, no pressure. Just honest advice on what’s possible and what makes sense.
View & Choose
See certified stones in person at our Johannesburg offices, or arrange a meeting in Cape Town. Choose your diamond with full confidence.
Photos at Every Stage
Once design is finalised, we send you progress photos throughout the making process. You approve before we proceed at each step.
Door-to-Door Delivery
Fully insured courier anywhere in South Africa. Your bespoke piece arrives safely, wherever you are in the country.
“Anywhere in South Africa. Real diamonds. Real people. Real simple.”
With over 25 years in the South African diamond trade, we leave no stone unturned to find exactly what you're looking for. Every enquiry is handled personally by David — no chatbots, no automated responses. Real expertise. Real service.
📞 082 551 2103Let’s talk →
Frequently asked questions
What kinds of jewellery can you make?
Can you remodel or redesign old jewellery?
How long does a bespoke piece take?
Do you work to a set budget?
Have something in mind?
Describe the piece or the heirloom you'd like reimagined and we'll talk you through what's possible, with a clear quote and timeline.
Let's find your diamond.
Speak to a dealer, not a salesperson. Get an honest quote with no obligation.