gemstone

Colorless faceted gemstone, likely a diamond in a ring setting

Diamond (carbon, C); identification from the image is uncertain

AI-generated identification · may be incorrect

Colorless to pale blue appearance with strong faceted sparkle; diamond has Mohs hardness 10 and a cubic crystal structure. The metal prongs and setting are not geological material.

Identified October 2, 2026More gemstone →

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Physical properties

Colorless to pale blue appearance with strong faceted sparkle; diamond has Mohs hardness 10 and a cubic crystal structure. The metal prongs and setting are not geological material.

Formation & geological history

Natural diamonds crystallize deep in Earth’s mantle under high pressure and temperature, often billions of years ago, then reach the surface in kimberlite or lamproite. A photograph cannot establish whether this stone is natural, lab-grown, or another clear gem.

Uses & applications

Faceted stones are used in jewelry; diamond is also used in cutting, drilling, and abrasive tools.

Geological facts

A jeweler or gemological laboratory can distinguish diamond from lookalikes and determine natural versus lab-grown origin using appropriate tests.

Field identification & locations

The visible round brilliant-style cut and prong setting suggest jewelry, but appearance alone is insufficient for reliable identification. Have it tested rather than relying on scratch or fog tests.