gemstone

Diamond bracelet (gold-set)

Diamond, crystalline carbon (C); gold alloy setting

AI-generated identification · may be incorrect

The clear, brilliant stones appear to be faceted diamonds, but image alone cannot confirm identity. Diamond has Mohs hardness 10, adamantine luster, and a cubic crystal structure; the setting appears to be gold-colored metal.

Identified October 3, 2026More gemstone →

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Physical properties

Formation & geological history

Natural diamonds crystallize deep in Earth’s mantle under extreme pressure and temperature, then reach the surface in volcanic kimberlite or lamproite. The stones may also be laboratory-grown; age and origin cannot be determined visually.

Uses & applications

Primarily jewelry and adornment; diamonds are also used in cutting and drilling tools.

Geological facts

Diamond is the hardest naturally occurring mineral, though it can still chip along cleavage planes.

Field identification & locations

Confirm with a jeweler or gemologist using appropriate testing; visual appearance is not enough to distinguish diamond from simulants. Similar deposits occur in countries including Botswana, Russia, Canada, and Australia.