gemstone

Red faceted gemstone, possibly ruby (identification uncertain)

Ruby, if natural: corundum (Al₂O₃) colored by chromium

AI-generated identification · may be incorrect

Transparent to translucent, vivid red, glassy luster, trigonal crystal structure; Mohs hardness 9. The image shows a faceted stone, but color and appearance alone cannot establish its identity or whether it is natural, synthetic, or imitation.

Identified September 29, 2026More gemstone →

Explore Red faceted gemstone, possibly ruby (identification uncertain) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

At a glance

Common name: Red faceted gemstone, possibly ruby (identification uncertain)
Scientific name: Ruby, if natural: corundum (Al₂O₃) colored by chromium
Category: gemstone
Identified: September 29, 2026
Method: Standard

AI Estimated Value

Not reliably estimable from the photo; imitation or synthetic stones may cost under $10, while natural rubies range from tens of dollars to many thousands depending on 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 under high-grade metamorphic conditions or in some igneous rocks; deposits range in age and occur in marble and related rocks. The pictured stone may also be lab-grown or imitation material.

Uses & applications

Rubies are used in jewelry and, owing to their hardness, specialized industrial and optical applications.

Geological facts

Ruby is the red variety of corundum; other colors of gem-quality corundum are called sapphire.

Field identification & locations

Confirm with gemological testing—refractive index, inclusions, and spectroscopy; visual inspection from this photo is insufficient. Natural ruby sources include Myanmar, Mozambique, Sri Lanka, and Madagascar.