gemstone
Diamond (set in jewelry)
Carbon (C)
AI-generated identification · may be incorrectHardness 10 on Mohs scale, adamantine luster, isometric crystal system, octahedral cleavage, color colorless to faint yellow, specific gravity 3.52.
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Physical properties
Hardness 10 on Mohs scale, adamantine luster, isometric crystal system, octahedral cleavage, color colorless to faint yellow, specific gravity 3.52.
Formation & geological history
Formed under extreme temperature and pressure in Earth's mantle over 1 billion years ago, brought to the surface via kimberlite or lamproite volcanic pipes.
Uses & applications
Primary use is in fine jewelry and ornamental rings; industrial grades are used for cutting, drilling, and polishing abrasive tools.
Geological facts
Diamond is the hardest known natural mineral and is composed of pure elemental carbon arranged in a diamond cubic lattice.
Field identification & locations
Identified by extreme hardness, high thermal conductivity, optical brilliance, and characteristic adamantine luster. Found predominantly in Africa, Russia, Canada, and Australia.
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