A bespoke diamond engagement ring resting on a dark cloth
Designed to order

Bespoke Engagement Rings β€” Designed Around You

Choose a certified diamond, then have a ring designed and crafted around it β€” guided personally, priced direct.

Home Β /Β  Engagement Rings

Explore styles

Choose Your Ring Style

Every engagement ring we make starts with the diamond β€” then we build the setting around it. Browse these popular styles to find what speaks to you.

Classic Solitaire β†’ Halo Setting β†’ Three Stone β†’
Solitaire diamond engagement ring Diagem Diamonds Halo diamond engagement ring Diagem Diamonds Three stone diamond engagement ring Diagem Diamonds
Jeweller crafting a bespoke ring at the bench
Personally guided

From first idea to the moment you ask.


A bespoke engagement ring should mean something. Rather than choosing from a tray of ready-made rings, you start with the diamond and build outward β€” the metal, the setting, the proportions β€” until the ring is unmistakably hers.

Because you deal directly with David, there is no sales floor between you and the people making the ring. You get candid advice on where to spend and where to save, a clear price with no retail mark-up, and a finished piece that reflects exactly what you set out to create.

The process

Four unhurried steps.

01

Consult

We talk through style, budget and timeline β€” bring inspiration, a Pinterest board or just an idea.

02

Choose the diamond

We present certified natural or lab-grown stones in your range so you can compare and choose with confidence.

03

Design

We agree the setting and proportions and produce a 3D CAD render within 48 hours, so you see exactly what is being made before work begins.

Complete guide to bespoke engagement rings β€” Diagem Diamonds designs custom rings around certified natural and lab-grown diamonds

Your diamond, your way.

Not sure where to start? Browse natural diamonds or more affordable lab-grown diamonds, or read the diamond guide to understand the 4Cs first. Looking for something beyond a ring? We also create bespoke fine jewellery of every kind.

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Don’t Fall for the Price Trap

Buying an engagement ring is one of the most emotionally charged purchases you’ll ever make β€” and price-shopping is where buyers get hurt most. A diamond can look perfect on paper (great GIA specs, strong cert) but be poorly cut, poorly proportioned, or affected by fluorescence that makes it look hazy in natural light. You’d never know from the certificate alone.

πŸ’Ž Is the diamond actually well-cut, or was it cut to hit a carat target at the expense of brilliance?
⚠️ Does it have medium or strong fluorescence that clouds it in daylight?
πŸ’Ž Are the proportions causing light to leak out the bottom instead of coming back as sparkle?
πŸ’Ž Are there symmetry or polish issues that affect the face-up appearance?

Price-only quotes are a trap. A diamond that looks like a bargain on paper could be a stone you’d spot as inferior the moment you compared it to a well-made one.

Call David before you commit β€” even if you don’t buy from us.

David will review any certificate and give you his honest opinion. No obligation, no sales pitch. That’s just how we do business.

First-Time Diamond Buyer? Here’s Exactly How It Works.

Planning to propose? David will guide you through every step β€” from choosing the diamond to designing the perfect ring. No jargon, no pressure.

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Call David

082 551 2103 β€” or WhatsApp. A real person answers. No robots, no call centres.

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No-Obligation Consultation

David explains everything in plain language β€” budget, diamond grades, ring styles. No pressure, no sales pitch.

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Choose Your Diamond

View certified stones in person at our Johannesburg offices, or we can arrange to meet in Cape Town. Compare and choose with confidence.

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Design the Ring

David consults with you on setting, metal and proportions. You receive photos at every stage of the ring-making process β€” nothing is a surprise.

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Delivered to Your Door

Fully insured courier anywhere in South Africa. Discreet, secure, and ready for the moment.

β€œAnywhere 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 β€” no chatbots, no automated responses. Real expertise. Real service.

πŸ“ž 082 551 2103
Let’s talk β†’
Good to know

Frequently asked questions

How does the bespoke ring process work?
It starts with a conversation about style, budget and timeline. We help you choose a certified diamond, agree a design and setting, then craft the ring and deliver it β€” with you informed at every step. Reach us on WhatsApp to begin.
How long does a bespoke engagement ring take?
Most rings are completed within a few weeks, depending on the design and the diamond. If you are working toward a specific date, tell us early and we will plan the timeline around it.
Can I use a diamond or heirloom I already own?
Yes. We can design a new ring around a stone you already have, or reset a diamond from an heirloom piece into a modern setting. Bring it in or send photos and we'll advise.
Do you deliver engagement rings outside Johannesburg?
Yes. We are based in Johannesburg and deliver finished rings nationwide across South Africa with insured, secure delivery.
Begin the design

Start designing the ring.

Share your idea, budget and timeline β€” even a reference photo. David will guide you from diamond selection through to the finished ring.

We never share your details. By sending you agree to be contacted about your enquiry.

Ready when you are

Let's find your diamond.

Speak to a dealer, not a salesperson. Get an honest quote with no obligation.

Chat with David