gemstone

Pink/red faceted gemstone, likely synthetic ruby or pink sapphire

Corundum, aluminum oxide (Al₂O₃); likely lab-grown or treated material

AI-generated identification · may be incorrect

Vivid magenta-red, transparent, emerald-cut style with strong vitreous luster; corundum has Mohs hardness 9, trigonal crystal structure, and no cleavage. The uniform color and apparent inclusions-free appearance suggest synthetic or heavily treated material, though the image cannot confirm identity.

Identified August 10, 2026More gemstone →

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At a glance

Common name: Pink/red faceted gemstone, likely synthetic ruby or pink sapphire
Scientific name: Corundum, aluminum oxide (Al₂O₃); likely lab-grown or treated material
Category: gemstone
Identified: August 10, 2026
Method: Standard

AI Estimated Value

Approximately $10-$100 if glass or synthetic; $100-$1,000+ if confirmed natural, depending on treatment, clarity, size, and provenance.

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 corundum forms in aluminum-rich metamorphic rocks and some igneous settings, commonly millions to billions of years old; synthetic corundum is produced industrially by flame-fusion or hydrothermal methods.

Uses & applications

Used in jewelry and as an abrasive; ruby is valued for red coloration, while pink sapphire is a durable jewelry stone. The surrounding setting appears to be a ring, likely gold-tone or gold alloy.

Geological facts

Ruby and sapphire are color varieties of the same mineral, corundum; chromium commonly produces red or pink colors. Glass, garnet, and synthetic stones can look similar.

Field identification & locations

Check with a refractometer, specific-gravity test, and microscope; hardness testing should be avoided on finished jewelry. Natural stones often show inclusions, color zoning, or growth features, whereas synthetic stones may show curved growth lines or gas bubbles. Common natural sources include Myanmar, Sri Lanka, Madagascar, and Mozambique.