gemstone

Diamond ring (likely diamond cluster band)

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

AI-generated identification · may be incorrect

Diamonds have Mohs hardness 10, adamantine luster, cubic crystal structure, and excellent thermal conductivity; the pictured stones are faceted and mounted, so cleavage and specific gravity cannot be tested visually. The setting appears to be silver-toned metal, possibly white gold or sterling silver.

Identified August 24, 2026More gemstone →

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Physical properties

Formation & geological history

Natural diamonds formed deep in Earth’s mantle under extreme pressure and temperature, commonly 1–3.5 billion years ago, then reached the surface in volcanic kimberlite or lamproite; lab-grown diamonds have the same composition and structure. The ring is a human-processed gemstone specimen.

Uses & applications

Used primarily in jewelry for durability and brilliance; industrial diamond is used for cutting, drilling, grinding, and polishing. Value depends strongly on carat weight, color, clarity, cut, provenance, and metal.

Geological facts

Faceting produces strong fire and scintillation, while diamond’s exceptional hardness makes it the standard for scratch resistance. Identification requires a loupe, thermal/electrical testing, and ideally gemological grading—not a scratch test.

Field identification & locations

Common sources include Botswana, Russia, Canada, Australia, and southern Africa, though origin cannot be determined from this image. Check for a hallmark, visible inclusions, edge wear, and a reputable laboratory report; alternatives may include cubic zirconia or moissanite.