gemstone

Blue faceted gemstone, likely synthetic spinel or sapphire

Undetermined from image; possible synthetic corundum (Al₂O₃) or spinel (MgAl₂O₄)

AI-generated identification · may be incorrect

Small, round brilliant-cut, vivid blue and transparent, with glassy luster. Hardness and crystal structure cannot be reliably determined from appearance alone: sapphire is Mohs 9; spinel is 8.

Identified October 11, 2026More gemstone →

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At a glance

Common name: Blue faceted gemstone, likely synthetic spinel or sapphire
Scientific name: Undetermined from image; possible synthetic corundum (Al₂O₃) or spinel (MgAl₂O₄)
Category: gemstone
Identified: October 11, 2026
Method: Standard

AI Estimated Value

Unverified small stones may be worth under $1 to several hundred dollars depending on material, treatment, and quality; image alone cannot establish value.

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

Small, round brilliant-cut, vivid blue and transparent, with glassy luster. Hardness and crystal structure cannot be reliably determined from appearance alone: sapphire is Mohs 9; spinel is 8.

Formation & geological history

The image shows a cut stone, not its geological origin. Natural sapphire forms in metamorphic rocks or igneous deposits; synthetic versions are lab-grown and have no geological age.

Uses & applications

Used in jewelry and as a collectible; identification is needed before assigning material-specific uses or value.

Geological facts

Blue color alone cannot distinguish sapphire, spinel, glass, or other simulants; gemological testing is required.

Field identification & locations

Check with a gemologist using refractive index, microscopy, and, where appropriate, spectroscopy; do not infer natural origin from the cut or color. Natural blue sapphire occurs in locations including Sri Lanka, Madagascar, Myanmar, and Australia.