Antwerp craftsmanship
Our pieces are made a short walk from the square mile where the diamond trade still sets its standards. Setters, polishers and graders we have worked with for years finish every commission by hand.
The house
One city.One standard.
Antwerp has cut, graded and traded the world's most important diamonds for more than five centuries. ONE ANTWERP was founded inside that tradition and works with the technology that follows it — crafting finished lab-grown diamond jewellery for private clients and jewellery professionals alike.
Modern technology
Our diamonds are grown, not mined. The process is precise and repeatable, which allows us to source larger stones in higher colours and clarities than the same budget would otherwise reach.
Exceptional diamonds
We buy selectively: only D or E colour, VS or VVS clarity, with cuts chosen for how they carry light. Every stone is independently IGI certified.
Exceptional diamonds
Architecture over ornament. Our designs are reduced until only proportion, line and stone remain — pieces intended to outlast the decade they were made in.
The diamond
A diamond, exactly.
A lab-grown diamond is a diamond. Same carbon lattice, same hardness, same refraction — created in weeks rather than eons.
Chemically identical
Pure crystallised carbon, with the same atomic structure as a mined diamond.
Physically identical
10 on the Mohs scale. The same density, the same durability, the same wear.
Optically identical
The same refractive index, dispersion and brilliance. Indistinguishable to the eye.
Independently graded
Every diamond is independently IGI certified according to the 4C criteria.
Certification & quality
Certification is not a marketing claim — it is the record of a stone. Every ONE ANTWERP diamond is D or E colour, VS or VVS clarity, independently graded by IGI, and delivered with its certificate.
- Colour
- Colour — only the exceptional colourless grades D or E.
- IGI
- IGI — independent certification for every ONE ANTWERP diamond.
- Clarity
- Clarity — only VS or VVS grades, selected for remarkable purity.
For professionals
Wholesale lab-grown diamond jewelry for jewelers
IGI-certified pieces from Antwerp for jewelers, retailers and concept stores. From 10 pieces, delivered worldwide.