gemstone

Faceted colorless gemstone, likely cubic zirconia or diamond

Most likely synthetic cubic zirconia (ZrO₂); diamond (C) is a less certain alternative

AI-generated identification · may be incorrect

Tiny round brilliant-cut, colorless, transparent stone with strong facet reflections and adamantine luster. Cubic zirconia has Mohs hardness ~8–8.5 and specific gravity ~5.6–6.0; diamond is hardness 10 and SG 3.52. The photo cannot reliably distinguish them.

Identified September 15, 2026More gemstone →

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At a glance

Common name: Faceted colorless gemstone, likely cubic zirconia or diamond
Scientific name: Most likely synthetic cubic zirconia (ZrO₂); diamond (C) is a less certain alternative
Category: gemstone
Identified: September 15, 2026
Method: Standard

AI Estimated Value

Loose cubic zirconia: about $1–$10; commercial lab-grown diamond of this size: roughly $20–$150; natural diamond could range from $100 to over $1,000 depending on carat weight, clarity, and color.

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 lab-grown zirconium dioxide rather than a natural geological specimen; if diamond, it crystallized deep in Earth’s mantle under extreme pressure and temperature, commonly billions of years old. The Mississippi locality is not diagnostic.

Uses & applications

Used as jewelry accent stones and diamond simulants; a confirmed diamond may have substantial gem value, whereas loose cubic zirconia is inexpensive.

Geological facts

The regular round-brilliant cut and bright rainbow/white flashes suggest a manufactured jewelry stone. It is not likely natural zircon, which is typically more strongly colored and has different optical behavior.

Field identification & locations

Check with a jeweler or gemologist: thermal/electrical conductivity testing, magnification, and refractive-index measurement are needed. Do not rely on a scratch test, which can damage the stone or setting.