Lab-grown diamonds · 18-carat gold
The diamond,
reinvented sustainably.
Exceptional stones grown with precision — the brilliance and purity of a natural diamond, with no compromise on ethics or your budget. Every creation is certified and crafted in solid gold.

Certificate includedIGI / GIA with every stone
Worldwide deliveryInsured & tracked, within 48 h
30-day returnsSatisfied or refunded
Secure paymentStripe · 3× · Apple Pay
Six colour universes
Collections named like lights
Each collection pairs a diamond colour with an emotion. Find yours.
The GMIR maison
The same diamond. A new conscience.
A lab-grown diamond is chemically, physically and optically identical to a mined diamond — but grown in a few weeks, with no mine, no conflict zone, at a fraction of the price. It's the real diamond, reinvented.
- 100% identicalSame hardness, same fire, same brilliance as a natural diamond.
- Traceable originNo mining, no conflict, a reduced footprint.
- Certified & guaranteedAn independent laboratory report with every piece.
Vidéo atelier · macro pierre · storytelling
