gemstone

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia - ZrO2, Moissanite - SiC)

AI-generated identification · may be incorrect

If diamond: Hardness 10, adamantine luster, cubic crystal system, perfect cleavage in 4 directions. If simulant, properties vary (e.g., CZ has hardness 8-8.5). Visible object is a faceted, colorless stone.

Identified July 10, 2026More gemstone →

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At a glance

Common name: Diamond (or Diamond Simulant)
Scientific name: Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia - ZrO2, Moissanite - SiC)
Category: gemstone
Identified: July 10, 2026
Method: Advanced

AI Estimated Value

Highly variable. A small CZ or glass simulant may be $1-$10. A natural diamond of this apparent size (if, for example, 0.10-0.50 carat) could range from $100 to $1,500+ depending on the 4 Cs (carat, cut, color, clarity).

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 form deep in the Earth's mantle under immense heat and pressure over billions of years, brought to the surface by volcanic pipes. Simulants are synthesized in laboratories.

Uses & applications

Used extensively in jewelry as gemstones. Industrial applications include cutting, drilling, and polishing tools due to extreme hardness (if true diamond).

Geological facts

Diamonds are the hardest known natural material on Earth. The optical properties (refractive index and dispersion) give faceted diamonds their brilliant sparkle.

Field identification & locations

Identification requires gemological testing (thermal conductivity, refractive index, magnification for inclusions). Often found in alluvial deposits or kimberlite pipes. Difficult to distinguish natural diamonds from synthetics or simulants by eye alone.