gemstone

Faceted colorless gemstone, likely diamond

Diamond (crystalline carbon, C)

AI-generated identification · may be incorrect

Mohs hardness 10; colorless to near-colorless, adamantine luster, cubic crystal structure, and typically no visible cleavage in a faceted cut stone. The image alone cannot confirm diamond; cubic zirconia or moissanite are possible simulants.

Identified August 19, 2026More gemstone →

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At a glance

Common name: Faceted colorless gemstone, likely diamond
Scientific name: Diamond (crystalline carbon, C)
Category: gemstone
Identified: August 19, 2026
Method: Standard

AI Estimated Value

Uncertified small stones or simulants: about $5–$500; certified natural diamonds: roughly $500 to many thousands of dollars, while lab-grown equivalents are commonly $100–$2,000 depending on specifications.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Natural diamonds crystallize deep in Earth’s mantle at roughly 1–3 billion years old and reach the surface in kimberlite or lamproite volcanic pipes; lab-grown diamonds form by HPHT or CVD methods over days to weeks.

Uses & applications

Used primarily in jewelry and as an industrial abrasive or cutting material. Value depends heavily on carat weight, cut, color, clarity, certification, and whether it is natural or laboratory-grown.

Geological facts

Round brilliant faceting produces strong sparkle through reflection and dispersion. Reliable identification requires gemological testing; a loupe, thermal tester, refractive index, and laboratory certificate are more useful than appearance alone.

Field identification & locations

Common natural sources include Botswana, Russia, Canada, Australia, and southern Africa; gem-quality stones are also lab-produced worldwide. Test specific gravity, thermal/electrical conductivity, and inclusions professionally—do not rely on a scratch test.