gemstone

Likely polished blue-green gemstone

Indeterminate from image; possibilities include sapphire (corundum, Al₂O₃), aquamarine (beryl, Be₃Al₂Si₆O₁₈), or blue-green tourmaline

AI-generated identification · may be incorrect

Small polished oval with blue-green color, vitreous luster, and apparent translucency; hardness cannot be determined visually (sapphire ~9, aquamarine ~7.5–8, tourmaline ~7–7.5 Mohs). Crystal structure and cleavage require testing or magnification.

Identified September 7, 2026More gemstone →

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At a glance

Common name: Likely polished blue-green gemstone
Scientific name: Indeterminate from image; possibilities include sapphire (corundum, Al₂O₃), aquamarine (beryl, Be₃Al₂Si₆O₁₈), or blue-green tourmaline
Category: gemstone
Identified: September 7, 2026
Method: Standard

AI Estimated Value

Approximately $5–$50 if common glass or low-grade material; roughly $50–$500+ if a genuine, attractive small gemstone, with fine sapphire or tourmaline potentially higher.

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

Likely a cut or tumbled natural gemstone formed in a hydrothermal or igneous environment; age depends on species and deposit, commonly millions to billions of years.

Uses & applications

Used in jewelry and mineral collections; value depends strongly on identity, transparency, color saturation, treatment, cut, and weight.

Geological facts

The photograph is insufficient for reliable species identification; apparent color may also be affected by lighting or surface coating.

Field identification & locations

Use refractive index, specific gravity, hardness, loupe examination, and laboratory testing; avoid scratch tests on a potentially valuable stone. Common sources vary: sapphire from Sri Lanka or Madagascar, aquamarine from Brazil, and tourmaline from Brazil or Afghanistan.