
gemstone
Diamond
Carbon (C)
AI-generated identification · may be incorrectMohs hardness of 10, colorless to pale yellow, adamantine luster, isometric crystal system.
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, colorless to pale yellow, adamantine luster, isometric crystal system.
Formation & geological history
Formed under extreme heat and pressure in the Earth's mantle, brought to the surface via kimberlite pipes.
Uses & applications
Used primarily in fine jewelry and industrial cutting or drilling 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 globally in alluvial deposits and kimberlite mines.
More like this
Other gemstone specimens
Ammolite
Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)
mineral
Gemstone Ring
N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ
gemstone
Topaz
Al2SiO4(F,OH)2
mineral
Amber
Succinite (Organic Gemstone)
mineral
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
gemstone
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary