A diamond the earth didn’t pay for
A diamond in every way
Crystallised carbon, identical to a mined stone in its physical, chemical and optical properties, and graded to the same 4C standards by the International Gemological Institute (IGI).
A traceable origin
Every Lumis diamond begins above ground in a diamond growth facility, never in a mine. No blasting, no displaced earth, and a supply chain traceable to the lab that grew it.
An honest footprint
Growing a diamond takes real energy, and we won't pretend otherwise. We work only with growers who disclose how their facilities are powered, and we publish what we know, plainly.
Lab-grown & mined, honestly compared
| Attribute | Lumis lab-grown diamond | Mined diamond |
|---|---|---|
| The stone itself | Pure crystallised carbon | Pure crystallised carbon, identical |
| Origin | Grown above ground in a traceable facility | Extracted from the earth |
| Grading | IGI-certified to the same 4Cs | Certified to the same 4Cs (GIA, IGI & others) |
| Traceability | Traceable to the lab that grew it | Supply chains often span many countries and hands |
| Hardness | Mohs 10, a diamond forever | Mohs 10, a diamond forever |
| Price | Typically 40–75% less than a mined stone of comparable carat, colour and clarity* | · |
*Based on prevailing Singapore retail prices for stones of comparable carat weight, colour and clarity grades. Individual prices vary by stone and setting. Lab-grown diamonds are always described as lab-grown throughout this site and on every certificate.