mineral

Yellow Diamond (Faceted)

Diamond (pure carbon) with nitrogen impurities, C

Hardness: 10 (Mohs scale), Color: Fancy yellow/canary, Luster: Adamantine, Crystal structure: Isometric-hexoctahedral, Cleavage: Octahedral, Specific gravity: 3.51-3.53

Identified May 30, 2026More mineral →

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Physical properties

Hardness: 10 (Mohs scale), Color: Fancy yellow/canary, Luster: Adamantine, Crystal structure: Isometric-hexoctahedral, Cleavage: Octahedral, Specific gravity: 3.51-3.53

Formation & geological history

Formed under high-pressure, high-temperature conditions in Earth's mantle, approximately 150km to 200km deep. They are brought to the surface by kimberlite and lamproite volcanic eruptions.

Uses & applications

Primary use in high-end jewelry (engagement rings, necklaces), and industrial applications for cutting and grinding (though usually lower-grade versions).

Geological facts

Yellow diamonds get their color from nitrogen atoms replacing carbon atoms in the crystal lattice. They are the most common of the 'fancy' color diamonds.

Field identification & locations

Identify by its exceptional brilliance and hardness. It can scratch any other material and has high thermal conductivity. Commonly found in secondary alluvial deposits or primary kimberlite pipes in South Africa, Australia, and Russia.

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