gemstone

Diamond ring

Diamond, crystalline carbon (C), set in a likely precious-metal ring

AI-generated identification · may be incorrect

The central gemstone appears to be a faceted, near-colorless diamond; diamond has Mohs hardness 10, adamantine luster, cubic crystal structure, and no cleavage visible in the setting. The mounting is likely polished white gold or platinum, though metal identification requires testing.

Identified September 7, 2026More gemstone →

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Physical properties

Formation & geological history

Natural diamonds crystallize deep in Earth’s mantle under extreme pressure and temperature, mostly more than 1 billion years ago, then reach the surface in kimberlite or lamproite pipes; laboratory-grown diamonds have the same composition but a different origin.

Uses & applications

Used primarily in jewelry for its brilliance, durability, and symbolism. Diamond is also important industrially for cutting, drilling, polishing, and abrasives.

Geological facts

Faceting produces brilliance through internal reflection; clarity, color, cut quality, and carat weight determine value. The image alone cannot confirm whether the stone is natural, lab-grown, or a simulant.

Field identification & locations

Check for sharp facet junctions, strong fire, and resistance to scratching, but do not use destructive scratch tests; professional loupe, thermal/electrical testing, and grading certification are reliable. Diamonds occur notably in Botswana, Russia, Canada, Australia, and South Africa.