gemstone

Turquoise cabochon ring

Turquoise, hydrated copper aluminum phosphate (CuAl₆(PO₄)₄(OH)₈·4H₂O); the stones may be stabilized or treated

AI-generated identification · may be incorrect

Opaque blue-green stones with a waxy-to-subvitreous polish, set as cabochons; Mohs hardness 5–6, triclinic crystal system, typically no visible cleavage. The image alone cannot confirm whether the stones are natural turquoise or identify any treatment; the surrounding setting appears to be metal.

Identified September 27, 2026More gemstone →

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At a glance

Common name: Turquoise cabochon ring
Scientific name: Turquoise, hydrated copper aluminum phosphate (CuAl₆(PO₄)₄(OH)₈·4H₂O); the stones may be stabilized or treated
Category: gemstone
Identified: September 27, 2026
Method: Standard

AI Estimated Value

Approximately $20–$200 for a fashion ring with common or treated turquoise; higher-quality natural stones and precious-metal settings can be worth more.

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

Turquoise forms when copper-bearing fluids alter aluminum- and phosphorus-rich rocks, often in arid-zone deposits. Deposits range from ancient to geologically recent; the stones’ specific origin and age cannot be determined from the photograph.

Uses & applications

Used chiefly in jewelry and ornamental objects; historically valued by many cultures. Turquoise is also collected as a mineral specimen.

Geological facts

Its characteristic blue-green color comes largely from copper, with iron often contributing green tones. Natural turquoise is commonly stabilized with resin to improve durability and color.

Field identification & locations

Look for opaque blue-to-green color and, in some stones, a natural matrix pattern; color alone cannot authenticate it. Major sources include the southwestern United States, Iran, China, and Mexico; gemological testing can distinguish turquoise from imitation materials.