gemstone

Ruby (set in a ring; possibly synthetic or imitation)

Corundum, Al₂O₃; red color is typically caused by chromium

AI-generated identification · may be incorrect

The image shows a polished, transparent-to-translucent red cabochon with a vitreous luster. Natural ruby has Mohs hardness 9 and a trigonal crystal structure, but appearance alone cannot establish whether this stone is natural ruby, lab-grown corundum, or imitation glass/spinel.

Identified September 25, 2026More gemstone →

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At a glance

Common name: Ruby (set in a ring; possibly synthetic or imitation)
Scientific name: Corundum, Al₂O₃; red color is typically caused by chromium
Category: gemstone
Identified: September 25, 2026
Method: Standard

AI Estimated Value

Not reliably estimable from the image: value ranges from a few dollars for imitation material to hundreds or much more for natural ruby, depending on identity, treatment, size, 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

Natural ruby forms during high-grade metamorphism or in certain igneous rocks; deposits occur in places including Myanmar, Mozambique, Sri Lanka, and Thailand. The ring setting and image do not reveal the stone’s origin or age.

Uses & applications

Rubies are used in jewelry and, for synthetic material, some laser and industrial applications.

Geological facts

Ruby and sapphire are varieties of the same mineral, corundum; red corundum is called ruby.

Field identification & locations

A gemological test is needed to identify this stone confidently; inspect inclusions and check refractive properties rather than relying on color. The pictured setting appears to be metal, not part of the geological specimen.