The house of Carat Lab
Precision you can see, a conscience you can feel
Carat Lab is a focused house of lab-grown diamonds and fine jewellery — for people who want the brilliance of a diamond without the cost to the earth. Every stone is chosen by expert gemologists, independently graded, and crafted into pieces made to last a lifetime.
Lab-grown · Certified · Crafted
Our belief
“A diamond should be beautiful in every sense — in the light it throws, and in the way it came to be.”
We started Carat Lab with a simple conviction: that modern luxury and a clear conscience belong together. Lab-grown diamonds let us offer the real thing — the same carbon, the same fire — created without mining, fully traceable, and at a price that feels honest. No compromise on beauty. None on integrity.
100%
Lab-grown, certified diamonds
IGI
Independently certified — every diamond
3
Markets served — United States, Germany & the UK
Our standard
Every diamond, to a gemologist's standard
We don't chase the biggest catalogue — we curate a single, uncompromising tier of quality and hold every stone to it. Each diamond is selected on the 4Cs, independently graded, and laser-inscribed so its identity can be traced.
- Selected by expert gemologists on the 4Cs
- Independently graded & laser-inscribed for traceability
- IGI-certified diamonds
What we stand for
Four things we never compromise
Precision
Engineered, examined, exact. Quality is measured, not promised.
Transparency
A clear origin, documented and traceable, on every single stone.
Sustainability
Grown, not mined — a fraction of the footprint of mining.
Craftsmanship
Set by master jewellers and finished by hand, to be worn for life.
From idea to your hand
How your piece is made
An end-to-end service, handled with precision, care and transparency.
01
Design & selection
We define your piece and the 4Cs with you, then select a certified lab-grown diamond to match.
02
Crafting & casting
Master jewellers cast, polish and set the stone in 14K, 18K gold or platinum.
03
Quality & certification
Each piece passes multiple checks and ships with its grading certificate and a traceability card.
04
Secure delivery
Fully insured, tracked and discreetly packaged — delivered worldwide.
A look at the work
The collection
For you & for your business
Retail and trade, one catalogue
Shop as an individual at our retail prices, or apply for a professional account to unlock trade pricing across the same collection. Every trade request is reviewed and approved by hand.
A diamond you can believe in
Discover certified lab-grown diamonds and fine jewellery — crafted to last, priced with honesty.