gemstone

Purple diamond (rough gem-quality diamond)

Diamond, crystalline carbon (C)

AI-generated identification · may be incorrect

Hardness 10 on the Mohs scale; vivid purple color and adamantine luster. Cubic crystal structure; natural octahedral cleavage, though this specimen appears irregular and fractured. The intense, even color and dramatic lighting may be enhanced or synthetic, so image alone cannot establish natural origin.

Identified September 29, 2026More gemstone →

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Physical properties

Formation & geological history

Diamonds crystallize deep in the mantle under extreme pressure and temperature, then reach the surface in kimberlite or lamproite pipes. They can be billions of years old; purple color is rare and may arise from crystal deformation or trace defects.

Uses & applications

Cut for fine jewelry or retained as a collector specimen; diamond is also used in abrasives and cutting tools.

Geological facts

Diamond is the hardest naturally occurring mineral, but it can cleave along specific planes and is not unbreakable.

Field identification & locations

Confirm with a gemologist using conductivity, spectroscopy, and microscopic examination; hardness testing can damage a specimen. South Africa has major diamond deposits, but the reported Lesotho-area location is not enough to identify a local source.