gemstone

Ruby-set gold ring

Ruby (corundum), Al₂O₃ colored red by chromium; mounted in a gold alloy

AI-generated identification · may be incorrect

The oval, faceted red gemstone appears to be ruby, though the image cannot confirm its identity or whether it is natural or synthetic. Ruby has Mohs hardness 9, a trigonal crystal structure, and vitreous luster; the ring’s gold-colored setting is worked metal, not rock.

Identified October 16, 2026More gemstone →

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At a glance

Common name: Ruby-set gold ring
Scientific name: Ruby (corundum), Al₂O₃ colored red by chromium; mounted in a gold alloy
Category: gemstone
Identified: October 16, 2026
Method: Standard

AI Estimated Value

Not reliably estimable from the image; a ring with ruby-colored simulant may be worth under $100, while a verified natural ruby and precious-metal setting can range from hundreds to many thousands of dollars.

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 rubies form in metamorphic rocks or, less commonly, in igneous-related deposits; their ages depend on the deposit. The ring’s gemstone may instead be synthetic, and its origin cannot be determined visually.

Uses & applications

Rubies are used in jewelry and, owing to their hardness, in some industrial applications. The gold setting is primarily decorative and may contribute substantially to the ring’s value.

Geological facts

Ruby and sapphire are varieties of the same mineral, corundum; chromium gives ruby its red color.

Field identification & locations

A red, faceted corundum is a plausible identification, but gemological testing is needed to distinguish ruby from simulants and determine natural versus synthetic origin. Ruby occurs in deposits including Myanmar, Mozambique, Sri Lanka, and Thailand.