Rock Identifier
Diamond ring (Diamond, crystalline carbon (C), likely colorless or near-colorless brilliant-cut stones set in gold) — gemstone
gemstone

Diamond ring

Diamond, crystalline carbon (C), likely colorless or near-colorless brilliant-cut stones set in gold

AI-generated identification · may be incorrect

Mohs hardness 10; adamantine luster, cubic crystal structure, excellent brilliance and dispersion, and no visible cleavage in the cut setting. The surrounding metal appears yellow gold, while the stones may include one center diamond and smaller accent diamonds.

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Physical properties

Mohs hardness 10; adamantine luster, cubic crystal structure, excellent brilliance and dispersion, and no visible cleavage in the cut setting. The surrounding metal appears yellow gold, while the stones may include one center diamond and smaller accent diamonds.

Formation & geological history

Natural diamonds crystallize deep in Earth’s mantle under extreme pressure and temperature, commonly 1–3 billion years ago, then reach the surface in kimberlite or lamproite. Synthetic diamonds are laboratory-grown and chemically equivalent.

Uses & applications

Used primarily in jewelry for engagement or fashion rings; industrial diamond is used for cutting, drilling, abrasives, and polishing. Value depends strongly on carat weight, cut, color, clarity, certification, and whether stones are natural or laboratory-grown.

Geological facts

Diamond is the hardest natural material but can still chip along cleavage directions. Its fire and sparkle are enhanced by precise faceting and high refractive index.

Field identification & locations

Identify by exceptional sparkle, sharp facet edges, high density, and resistance to scratching; reliable identification requires a gemological tester because cubic zirconia and moissanite can look similar. Common source regions include southern Africa, Russia, Canada, and Australia.