gemstone

Red cut gemstone, likely synthetic ruby

Corundum (Al₂O₃); possibly lab-grown ruby or red glass imitation

AI-generated identification · may be incorrect

The vivid red, transparent, step-cut stone resembles ruby, but the image alone cannot confirm its material. Natural and synthetic ruby are Mohs 9, trigonal, and glassy; red glass is softer and lacks corundum’s crystal structure.

Identified September 29, 2026More gemstone →

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At a glance

Common name: Red cut gemstone, likely synthetic ruby
Scientific name: Corundum (Al₂O₃); possibly lab-grown ruby or red glass imitation
Category: gemstone
Identified: September 29, 2026
Method: Standard

AI Estimated Value

Not determinable from the image: glass imitations may cost under $10, while ruby values range from tens of dollars to thousands or more depending on natural or synthetic origin, 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

If corundum, its color comes from chromium; natural ruby forms in metamorphic or igneous-related deposits, while synthetic ruby is grown industrially. The pictured cut does not reveal its age or origin.

Uses & applications

Rubies are used in jewelry and, synthetically, in lasers and precision components; glass imitations are decorative.

Geological facts

A saturated red color and faceted cut are not enough to distinguish natural ruby from lab-grown corundum or glass.

Field identification & locations

Identification requires gemological tests such as refractive-index measurement and microscopy; common ruby sources include Myanmar, Mozambique, and Thailand. No reliable field identification is possible from this image.