gemstone

Colorless faceted gemstone, likely glass or cubic zirconia

Uncertain; possible cubic zirconia (zirconium dioxide, ZrO₂) or synthetic glass

AI-generated identification · may be incorrect

The image shows a round brilliant-cut, colorless, highly reflective stone, but glare prevents reliable identification. Cubic zirconia has Mohs hardness 8–8.5, adamantine luster, cubic structure, and no cleavage; diamond has hardness 10 and much stronger dispersion.

Identified September 14, 2026More gemstone →

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At a glance

Common name: Colorless faceted gemstone, likely glass or cubic zirconia
Scientific name: Uncertain; possible cubic zirconia (zirconium dioxide, ZrO₂) or synthetic glass
Category: gemstone
Identified: September 14, 2026
Method: Standard

AI Estimated Value

About $1–$50 if cubic zirconia or glass; roughly $100–$1,000+ if a small natural diamond, depending on carat weight, color, clarity, and certification.

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

If cubic zirconia, it is laboratory-grown zirconium dioxide rather than a natural geological crystal; if diamond, it formed deep in Earth’s mantle under extreme pressure and temperature. The photograph alone cannot establish age or origin.

Uses & applications

Used primarily in costume and fine jewelry as a diamond simulant; cut quality determines visual appeal and value.

Geological facts

Cubic zirconia is denser than diamond and commonly shows strong rainbow flashes. A loupe, refractive-index measurement, thermal conductivity tester, and specific-gravity test are needed for confident separation.

Field identification & locations

The regular brilliant faceting and intense reflection indicate a cut gemstone or simulant, not a raw rock. Inspect for inclusions, facet sharpness, doubling, and a visible hallmark; professional gem testing is recommended.