gemstone

Likely blue sapphire ring

Corundum (Al₂O₃), likely sapphire; surrounding stones may be diamonds or colored gems

AI-generated identification · may be incorrect

Blue, transparent-to-translucent faceted gemstone with vitreous luster; Mohs hardness 9, trigonal crystal structure, no prominent cleavage, specific gravity about 4.0. Identification is uncertain because the stone is small and mounted.

Identified August 17, 2026More gemstone →

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At a glance

Common name: Likely blue sapphire ring
Scientific name: Corundum (Al₂O₃), likely sapphire; surrounding stones may be diamonds or colored gems
Category: gemstone
Identified: August 17, 2026
Method: Standard

AI Estimated Value

Approximately $20-$200 for a small commercial or synthetic stone; $300-$10,000+ for a natural, untreated, fine-quality sapphire, depending heavily on origin, color, clarity, and certification.

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

Natural sapphire forms in aluminum-rich metamorphic rocks or silica-poor igneous environments, generally over geological timescales; many jewelry sapphires are heat-treated. Major sources include Sri Lanka, Myanmar, Kashmir, Madagascar, Australia, and Montana.

Uses & applications

Used primarily in rings and other jewelry; synthetic corundum is also used for watch crystals, abrasives, and technical components.

Geological facts

Blue color commonly comes from iron and titanium; Kashmir sapphires are famous for a velvety blue appearance. A definitive identification requires gemological testing, especially refractive index and spectroscopy.

Field identification & locations

The image shows a mounted blue faceted stone, but color and setting cannot distinguish sapphire from blue spinel, glass, or synthetic corundum. Look for inclusions, test hardness only professionally, and obtain a lab report for value.