gemstone

Diamond ring

Diamond (crystalline carbon, C)

AI-generated identification · may be incorrect

The central stone appears colorless and faceted, with strong luster; diamond has Mohs hardness 10, cubic crystal structure, no visible cleavage in a mounted gem, and specific gravity about 3.52. The surrounding metal and setting are human-processed, but the gemstone is geological material.

Identified August 11, 2026More gemstone →

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Physical properties

Formation & geological history

Natural diamonds crystallize deep in Earth’s mantle under extreme pressure and temperature, commonly over 1 billion years ago, then reach the surface in kimberlite or lamproite. This image cannot establish whether the stone is natural, laboratory-grown, or a simulant.

Uses & applications

Used primarily in jewelry and valued for brilliance, durability, and symbolism; industrial diamond is used for cutting, drilling, and abrasives. Value depends heavily on carat weight, cut, color, clarity, provenance, and metal.

Geological facts

A loupe or photograph cannot reliably distinguish diamond from cubic zirconia or moissanite. Standard identification requires thermal/electrical conductivity testing and professional gemological examination.

Field identification & locations

Look for exceptional hardness, adamantine luster, sharp facet reflections, and possible inclusions, but do not use scratch tests on jewelry. Common natural sources include Botswana, Russia, Canada, Australia, and southern Africa.