Rock Identifier
Diamond (Carbon (C)) — gemstone
gemstone

Diamond

Carbon (C)

AI-generated identification · may be incorrect

Mohs hardness of 10, typically colorless or tinted, adamantine luster, isometric crystal system with perfect octahedral cleavage.

Identified More gemstone →
Explore Diamond in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Mohs hardness of 10, typically colorless or tinted, adamantine luster, isometric crystal system with perfect octahedral cleavage.

Formation & geological history

Formed under extreme pressure and high temperature in Earth's mantle, primarily transported to the surface by kimberlite pipes over billions of years.

Uses & applications

Extensively used in high-end fine jewelry and utilized in industrial applications like cutting, drilling, and grinding tools.

Geological facts

Diamond is the hardest naturally occurring substance known on Earth and conducts heat exceptionally well.

Field identification & locations

Identified by extreme hardness, high refractive index, and adamantine luster; found in alluvial deposits and primary kimberlite pipes globally.