mineral

Diamond (or high-quality simulant like Cubic Zirconia)

Carbon (C) - Native Element

Hardness: 10 (Mohs); Color: Colorless to faint yellow/brown; Luster: Adamantine; Crystal Structure: Isometric (cubic); Cleavage: Perfect octahedral; Specific Gravity: 3.52

Hardness: 10 (Mohs)
Color: Colorless to faint yellow/brown
Luster: Adamantine

Identified February 24, 2026More mineral →

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Physical properties

Hardness: 10 (Mohs); Color: Colorless to faint yellow/brown; Luster: Adamantine; Crystal Structure: Isometric (cubic); Cleavage: Perfect octahedral; Specific Gravity: 3.52

Formation & geological history

Formed deep in the Earth's mantle under intense heat and pressure over billions of years, then brought to the surface via volcanic kimberlite pipes.

Uses & applications

Used primarily in fine jewelry (engagement rings, necklaces) and industrially for cutting, grinding, and drilling tools due to extreme hardness.

Geological facts

Diamond is the hardest naturally occurring substance on Earth. Most natural diamonds are between 1 billion and 3.5 billion years old.

Field identification & locations

Identify by its ability to scratch all other minerals, high refractive index (brilliance), and thermal conductivity. Found primarily in South Africa, Russia, Canada, and Australia.

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