gemstone

Red cabochon gemstone ring, likely synthetic ruby or red glass

Possibly corundum (Al₂O₃, chromium-colored); identity cannot be confirmed from the image

AI-generated identification · may be incorrect

Oval, translucent vivid-red cabochon in a metal setting. Natural or synthetic ruby is Mohs 9 with a trigonal crystal structure; glass is softer and lacks a crystal structure. The stone’s appearance alone cannot distinguish these materials.

Identified September 25, 2026More gemstone →

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At a glance

Common name: Red cabochon gemstone ring, likely synthetic ruby or red glass
Scientific name: Possibly corundum (Al₂O₃, chromium-colored); identity cannot be confirmed from the image
Category: gemstone
Identified: September 25, 2026
Method: Standard

AI Estimated Value

Approximately $5–$100 for a glass or synthetic-stone ring; natural ruby rings can range from hundreds to far more, depending on stone quality and metal.

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 ruby, it formed as chromium-bearing corundum in metamorphic rocks or certain igneous deposits; synthetic ruby is laboratory-grown. The ring’s age and stone origin are not evident from the image.

Uses & applications

Jewelry and personal adornment; ruby is also used in precision components and lasers.

Geological facts

Ruby is the red variety of corundum, with color chiefly caused by chromium. A gemological test is needed to tell natural ruby from synthetic ruby or glass.

Field identification & locations

The image shows a mounted red cabochon, not enough detail to identify its material. Have a jeweler or gemologist test hardness, inclusions, and optical properties; ruby occurs notably in Myanmar, Mozambique, Thailand, and Sri Lanka.