gemstone

Clear faceted gemstone, likely cubic zirconia

Synthetic zirconium dioxide (ZrO₂), probably cubic zirconia; exact identification requires testing

AI-generated identification · may be incorrect

Colorless, transparent, highly brilliant with strong fire; faceted crystal appearance and glassy luster. Cubic zirconia has Mohs hardness about 8–8.5, no cleavage, and specific gravity around 5.6–6.0; the surrounding setting appears metal, not geological material.

Identified September 13, 2026More gemstone →

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At a glance

Common name: Clear faceted gemstone, likely cubic zirconia
Scientific name: Synthetic zirconium dioxide (ZrO₂), probably cubic zirconia; exact identification requires testing
Category: gemstone
Identified: September 13, 2026
Method: Standard

AI Estimated Value

Loose commercial CZ: about $1–$30; mounted costume jewelry: roughly $5–$75. If this proves to be diamond, natural zircon, or another precious stone, value could differ dramatically.

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

Usually laboratory-grown by melting zirconium dioxide with stabilizing oxides; it is synthetic and has no geological age. Natural colorless zircon or diamond are alternative possibilities, but the image cannot distinguish them reliably.

Uses & applications

Common diamond simulant in costume and commercial jewelry; valued for brilliance and durability. The apparent ring/pendant setting may be plated or precious metal, which requires separate testing.

Geological facts

Cubic zirconia typically shows more rainbow dispersion and slightly softer facet edges than diamond. It is heavier than glass and generally lacks diamond’s characteristic thermal conductivity.

Field identification & locations

Inspect facet symmetry, inclusions, and wear with magnification; refractive-index, thermal-conductivity, and specific-gravity tests are needed for confirmation. Natural zircon occurs in igneous and metamorphic rocks worldwide, while synthetic CZ is manufactured globally.