Scientific research into lab-grown diamonds dates back to the 1950s, but it is only relatively recently that gem-quality diamonds suitable for fine jewelry have become available.
By taking over from nature, humankind can reproduce the growth of a crystal lattice composed of carbon atoms of exceptional hardness. The science is clear: a lab-grown diamond is a diamond. It has the same physical, chemical and optical properties as diamonds crystallized beneath the Earth’s surface or in space. Only their origin differs.
Each diamond crystal is unique and is cut accordingly.
Lab-grown diamonds embody a modern story of innovation and sustainability.
Two main methods are used to grow a lab-grown diamond:
HPHT (High Pressure High Temperature): this method uses very high pressures and temperatures to enable the growth of the diamond crystal.
CVD (Chemical Vapor Deposition): this method allows the diamond to grow progressively, layer by layer, from a carbon-containing gas.
Both processes produce gem-quality lab-grown diamonds suitable for fine jewelry.
Lab-grown diamonds can be colorless or display a wide variety of colors, known as Fancy Colors.
A true identity card for each stone, the scientific gemological certificates are independent.
They precisely evaluate the 4C's Carat, Color Clarity and Cut (carat, color, purity and
size) but also the proportions, symmetry and polishing of each diamond whatever its origin and according to strict international standards. These certificates are crucial because they provide reliable and unbiased information to consumers and industry professionals. They are always written in English.
There are three world-renowned laboratories that are references:
The GIA - Gemological Institute of America
IGI - International Gemological Institute
HRD - Hoge Raad voor Diamant (Higher Diamond Council in Dutch).
International gemological laboratories exclusively use the terms Lab Grown Diamond for Laboratory Grown Diamond. Each certificate is numbered and all diamonds from Exquisite Lab Diamonds are laser engraved with this unique number on their girdle preceded by the words LG for Lab Grown. This engraving is invisible to the naked eye.
