mineral

Yellow Diamond (Faceted)

Diamond (C - Pure Carbon)

Hardness: 10 (Mohs scale), Color: Fancy yellow, Luster: Adamantine, Crystal structure: Cubic (Isometric), Cleavage: Perfect octahedral, Specific gravity: 3.52

Identified April 4, 2026More mineral →

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Physical properties

Hardness: 10 (Mohs scale), Color: Fancy yellow, Luster: Adamantine, Crystal structure: Cubic (Isometric), Cleavage: Perfect octahedral, Specific gravity: 3.52

Formation & geological history

Formed under high-pressure and high-temperature conditions deep within the Earth's mantle (140-190 km deep). Brought to the surface via volcanic eruptions specifically through kimberlite and lamproite pipes.

Uses & applications

Primarily used in high-end jewelry (engagement rings, necklaces). Industrial-grade diamonds (lesser quality) are used for cutting, drilling, and grinding tools.

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 but are still rarer than colorless diamonds.

Field identification & locations

Identified by its high refractive index (brilliance) and extraordinary hardness. In the field, look for primary source rocks like Kimberlite or secondary alluvial deposits in riverbeds.