
gemstone
Diamond (Cut Gemstone)
Carbon (C)
AI-generated identification · may be incorrectHardness: 10 (Mohs scale); Color: Colorless; Luster: Adamantine; Crystal Structure: Isometric/Cubic; Cleavage: Perfect octahedral; Specific Gravity: 3.51-3.53
- Hardness
- 10 (Mohs scale)
- Color
- Colorless
- Luster
- Adamantine
Identified More gemstone →
Explore Diamond (Cut Gemstone) in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 10 (Mohs scale); Color: Colorless; Luster: Adamantine; Crystal Structure: Isometric/Cubic; Cleavage: Perfect octahedral; Specific Gravity: 3.51-3.53
Formation & geological history
Formed deep within the Earth's mantle under extreme heat and pressure, brought to the surface by kimberlite and lamproite volcanic eruptions, typically billions of years old.
Uses & applications
Primarily used in high-end jewelry and industrial applications for cutting, grinding, and drilling due to its extreme hardness.
Geological facts
Diamonds are the hardest known natural substance. The Cullinan Diamond is the largest gem-quality rough diamond ever found, weighing 3,106 carats.
Field identification & locations
Identify by its brilliance, dispersion (fire), and ability to scratch any other material. Found in cratons (ancient continental cores) in South Africa, Russia, Canada, and Australia.
More like this
Other gemstone specimens
Gemstone Ring
N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ
gemstone
Ammolite
Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)
mineral
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
gemstone
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Cubic Zirconia (simulant) or Diamond
ZrO2 (Cubic Zirconia) or C (Diamond)
gemstone
Black Opal Ring (Carved Opal)
Hydrated Silicon Dioxide (SiO2·nH2O)
gemstone