gemstone

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic ZrO₂), possibly glass or white sapphire

AI-generated identification · may be incorrect

Oval brilliant cut, colorless, transparent, vitreous-to adamantine luster, no visible inclusions. Cubic zirconia hardness ~8–8.5 Mohs and specific gravity ~5.6–6.0; unlike diamond, it is commonly synthetic and may show strong rainbow fire.

Identified August 8, 2026More gemstone →

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At a glance

Common name: Colorless faceted gemstone, likely cubic zirconia
Scientific name: Cubic zirconia (synthetic ZrO₂), possibly glass or white sapphire
Category: gemstone
Identified: August 8, 2026
Method: Standard

AI Estimated Value

About $1–$30 if cubic zirconia or glass; roughly $30–$300 for commercial white sapphire, depending on size and quality; much higher only if verified as diamond.

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

This appears cut and polished rather than naturally occurring. Cubic zirconia is manufactured by melting zirconium dioxide with stabilizers; it has no geological age. The photograph cannot reliably distinguish it from glass or another colorless gemstone.

Uses & applications

Jewelry imitation stone and decorative settings; generally low-cost compared with diamond. White sapphire is also used in jewelry but is less brilliant and harder to identify visually.

Geological facts

The pronounced faceting and oval brilliant cut indicate a finished gem, not a raw mineral crystal. A thermal diamond tester alone may misidentify cubic zirconia; refractive index or specific-gravity testing is more diagnostic.

Field identification & locations

Check for facet-edge wear, loupe-visible inclusions, and a refractometer reading: cubic zirconia RI ~2.15, sapphire ~1.76, diamond ~2.42. The Santiago-area location is not useful for identifying a manufactured cut stone.