Black Lab-Grown Diamonds

Black lab-grown diamonds are colorless diamonds modified in a lab. Black lab-grown diamonds result from treatments that create defects that absorb light.

Mined black diamonds, or carbonados, are rare. They are porous and contain dark minerals like graphite and hematite. They are usually treated to improve their color and durability.

Both types of black diamonds are real, but differ in origin, properties, and quality. Lab-grown black diamonds are more uniform, pure, and affordable, but less unique and historical than mined ones.