Rock Identifier
Diamond (Princess Cut) (Carbon (C)) — gemstone
gemstone

Diamond (Princess Cut)

Carbon (C)

Hardness: 10 (Mohs scale), Color: Colorless to faint yellow, Luster: Adamantine, Crystal System: Isometric, Specific Gravity: 3.51, Cleavage: Perfect octahedral

Luster
Adamantine, Crystal System: Isometric, Specific Gravity: 3
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Physical properties

Hardness: 10 (Mohs scale), Color: Colorless to faint yellow, Luster: Adamantine, Crystal System: Isometric, Specific Gravity: 3.51, Cleavage: Perfect octahedral

Formation & geological history

Formed under extreme pressure and high temperature in the Earth's mantle, transported to the surface via kimberlite volcanic eruptions over billions of years.

Uses & applications

Primary use in high-end jewelry (engagement rings) and industrial applications for cutting, grinding, and drilling due to extreme hardness.

Geological facts

Diamonds are the hardest natural substance on Earth. The 'Princess Cut' was developed in the 1960s-70s and is characterized by its square shape and high brilliance.

Field identification & locations

Identify by extreme hardness (scratches all other minerals), high refractive index (brilliance), and thermal conductivity. Professional testing is required to distinguish from Cubic Zirconia or Moissanite.