ONEANTWERP
ONEANTWERP
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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.

Loose brilliant-cut lab-grown diamonds on grey marble
01

Chemically identical

Pure crystallised carbon, with the same atomic structure as a mined diamond.

02

Physically identical

10 on the Mohs scale. The same density, the same durability, the same wear.

03

Optically identical

The same refractive index, dispersion and brilliance. Indistinguishable to the eye.

04

Independently graded

Certified by GIA, IGI or HRD Antwerp, using the same 4C criteria.

Certification & quality

Certification is not a marketing claim — it is the record of a stone. Each of our diamonds is graded by an independent laboratory, and the certificate travels with the piece.

GIA
Gemological Institute of America — the reference for grading methodology.
IGI
International Gemological Institute — the standard for lab-grown grading.
HRD
HRD Antwerp — Europe's authority, in our own city.

The diamond

A responsible choice

Growing a diamond requires no excavation and a traceable supply chain. We state that plainly and leave the superlatives to others.

See the collection