gemstone

Faceted colorless gemstone, likely glass or diamond imitation

Unidentified; possibly diamond (carbon, C) or cubic zirconia (zirconium dioxide, ZrO₂)

AI-generated identification · may be incorrect

The mounted stone is colorless, transparent, and brilliant with a round faceted cut. Hardness and crystal structure cannot be determined reliably from the photograph; apparent metal setting and wear suggest a vintage ring, possibly containing glass or synthetic stone.

Identified September 2, 2026More gemstone →

Explore Faceted colorless gemstone, likely glass or diamond imitation in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

At a glance

Common name: Faceted colorless gemstone, likely glass or diamond imitation
Scientific name: Unidentified; possibly diamond (carbon, C) or cubic zirconia (zirconium dioxide, ZrO₂)
Category: gemstone
Identified: September 2, 2026
Method: Standard

AI Estimated Value

Approximately $5–$100 if glass or common simulant; $50–$500 for quality cubic zirconia in a vintage setting; a genuine diamond could range from $200 to several thousand dollars depending on carat and quality.

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 diamond, it formed deep in Earth’s mantle under high pressure and temperature, commonly more than 1 billion years ago; cubic zirconia is laboratory-grown, while glass is manufactured. The image cannot establish which material is present.

Uses & applications

Used as jewelry; diamonds have industrial cutting and abrasive uses, whereas cubic zirconia and glass are primarily decorative simulants.

Geological facts

Strong rainbow dispersion and facet sharpness may indicate diamond or cubic zirconia, but lighting can exaggerate both. A loupe, refractive-index test, thermal/electrical tester, and professional gemologist are needed for identification.

Field identification & locations

Check for facet abrasions, inclusions, doubling of back facets, and setting marks; do not scratch-test the stone. Common possibilities include diamond, cubic zirconia, synthetic spinel, or glass.