PRIVATE JEWELLER · LONDON · BY APPOINTMENT ONLY
Your Diamond Decision, Guided, Now in London
Diamond House Jewellery brings Antwerp's diamond expertise to London guiding you from the first conversation about diamonds to the final creation of your piece. Private, appointment-only, and entirely focused on you.
Buying a diamond can feel overwhelming. It doesn't have to.
Maybe you're about to propose. Maybe you're marking a milestone that deserves something extraordinary. Either way, you're holding a decision that feels bigger than you expected and you're not sure where to start.
Diamonds are a world most people never needed to learn. The terminology is overwhelming. The prices are hard to read. And in most jewellery stores, the person across the counter is a salesperson, not someone who can genuinely help you understand what you're looking at.
That uncertainty? It's completely normal. And it's exactly why we exist.
We don't expect you to know anything about diamonds when you walk in. We expect you to leave knowing everything you need to make this decision with confidence.
A Private Diamond House, Available in London
Meet Céline & Rob.
Diamond House was founded in Antwerp, the world's diamond capital, by Rob van Beurden, who has spent four decades inside the diamond trade. He knows the difference between stones from Botswana and Angola at a molecular level. His nickname in the industry is "The King of Colour."
Céline Gouwy, our gemologist, runs every London appointment personally. She is known as "The Queen of Clarity" and for good reason. She has built a reputation for patience, precision, and the kind of honesty that means she will sometimes tell you not to buy a stone.
Several times a month, Céline hosts private appointment days at our office at 2 Royal Exchange, a grand, columned building in the heart of the City that has housed meaningful exchanges for over four centuries. Inside, it's private and unhurried. Just you, Céline, and the stones she's chosen to show you
This is a guided conversation about diamonds, what they are, how to evaluate them, which one is right for you, and how we turn that into something made entirely for you.
Your Diamond First. Your piece around it.
Every piece we create starts the same way, with finding the right diamond or gemstone for you. Once that decision is made, you choose how it becomes a piece of jewellery.
Ready to wear
A refined selection of timeless settings, designed to let the diamond speak. If you know what you love and want to see it immediately, this is your path.
Fully bespoke
You have something in mind, a shape, a feeling, a reference image, a sketch on a napkin. We translate that into a design made entirely around your stone, crafted by our goldsmiths in Antwerp.
Not sure yet?
That's completely fine. Most clients decide during or after the appointment, once they have seen the diamond and talked through the options. We guide you through both options without pressure.
What to Expect at Your Appointment
Every appointment follows the same principle: we guide, you decide.
01
You reach out
Call, WhatsApp, or email. Tell us what you're looking for or simply that you're not sure yet. We'll ask a few questions to understand your situation, your budget, and what matters most to you. There's no commitment at this stage. It's just a conversation.
02
We prepare
Before we meet, we go to work. Using Antwerp's global diamond sourcing network, we hand-select a curated set of natural diamonds or gemstones matched specifically to your brief. You won't be looking at a standard display tray. You'll be looking at stones chosen with you in mind.
03
We meet at the Royal Exchange
This is the moment that changes everything for most of our clients. We sit together, privately, and walk you through each diamond. We explain the real differences, not just the 4Cs, but the trade-offs, the things a certificate doesn't tell you, and what actually matters for your budget. We give you our honest professional opinion. And we never rush.
04
We create your piece
Once you've chosen your diamond or gemstone, we design your ring or jewellery piece around it. Either from our refined ready-to-wear collection, or fully custom-made to your vision.
Get inspired
Why Clients Choose Diamond House Jewellery
Most people who come to us have already visited the high street. They left uncertain.
Expert guidance, not inventory
We are trained gemologists with four decades of diamond knowledge. Our role is to educate you, explain the trade-offs honestly, and help you make the right decision for your budget and your values. The diamond you choose will be the right one for you, not the most convenient one for us.
The right stone, sourced for you
We source from global diamond databases through Antwerp's network, selecting diamonds based on exactly what you're looking for. That means a more precise match and better value — because you're not limited to what happens to be in stock.
Fair value, no brand premium
Your budget goes towards the diamond or gemstone and the craftsmanship around it, not towards a flagship address or a name on a box. We source directly from Antwerp, keep our overhead low, and pass that through to you. The result: a higher-quality diamond for the same budget.
Fully personal, fully private
There are no other clients in the room. No ambient showroom pressure. Just a private, focused appointment with people who genuinely care about the outcome.
They weren't sure about the quality. They didn't feel guided. And they couldn't tell whether the price reflected the stone or the brand on the box. Diamond House Jewellery is a different experience entirely.
What Our Clients Say
— Alix Rolland
— Erin Ennis
— David Jones
— Oscar Gomez
Visit Us in London
Diamond House Jewellery London
By appointment only
2 Royal Exchange
London EC3V 3DG
London
celine@diamondhouse.be
WhatsApp available on the London number
Frequently Asked Questions
Ready to Start?
Whether you know exactly what you want or are starting from zero, we are here to guide you. The first conversation costs nothing and commits you to nothing.