gemstone

Pink corundum (likely synthetic or treated sapphire)

Corundum, Al₂O₃; pink coloration commonly from chromium or treatment

AI-generated identification · may be incorrect

Very small, transparent-to-translucent pink, glassy/lustrous, faceted or rounded. Mohs hardness 9, trigonal crystal system, no cleavage, specific gravity about 4.0; the vivid uniform color and shape may indicate synthetic material or glass imitation.

Identified August 17, 2026More gemstone →

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At a glance

Common name: Pink corundum (likely synthetic or treated sapphire)
Scientific name: Corundum, Al₂O₃; pink coloration commonly from chromium or treatment
Category: gemstone
Identified: August 17, 2026
Method: Standard

AI Estimated Value

About $1–$20 if synthetic, glass, or low-grade tumbled material; roughly $20–$200+ if confirmed natural pink sapphire, with fine faceted stones potentially much higher.

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, silica-poor metamorphic rocks and some igneous settings, generally during regional metamorphism; crystals range from Precambrian to younger ages. The image alone cannot establish natural origin.

Uses & applications

Used as sapphire in jewelry when quality is sufficient, and as an abrasive or laser material; synthetic corundum is common in industrial and laboratory applications.

Geological facts

Pink sapphire is corundum colored mainly by chromium, iron, or titanium; ruby is the red variety. A scratch test should not be performed on a valuable specimen.

Field identification & locations

Common natural sources include Sri Lanka, Myanmar, Madagascar, Vietnam, and East Africa. Confirm identity with refractive index, hardness, magnification, and spectroscopy; appearance alone cannot exclude pink glass or synthetic corundum.