gemstone
Diamond (or Simulant)
Carbon (C)
AI-generated identification · may be incorrectHardness: 10 (Mohs scale), Color: Colorless, Luster: Adamantine, Crystal structure: Isometric-Hexoctahedral, Cleavage: Octahedral, Specific Gravity: 3.52
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Physical properties
Hardness: 10 (Mohs scale), Color: Colorless, Luster: Adamantine, Crystal structure: Isometric-Hexoctahedral, Cleavage: Octahedral, Specific Gravity: 3.52
Formation & geological history
Formed under high-pressure, high-temperature conditions in the Earth's mantle, approximately 100 miles below the surface, brought to the crust by kimberlite eruptions.
Uses & applications
Primary use in high-end jewelry (engagement rings, necklaces), and industrial applications for cutting, grinding, and drilling due to extreme hardness.
Geological facts
Diamonds are the hardest known natural substance. The Hope Diamond is one of the most famous specimens, known for its deep blue color and storied history.
Field identification & locations
Identified by its high refractive index and dispersion (fire). In a lab setting, thermal conductivity and UV fluorescence are used to distinguish it from simulants like Cubic Zirconia or Moissanite.
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