gemstone

Gemstone ring, likely emerald and opal

Green beryl (Be₃Al₂Si₆O₁₈), with probable common opal (hydrated amorphous silica, SiO₂·nH₂O)

AI-generated identification · may be incorrect

The green stone appears transparent to translucent with vitreous luster, consistent with emerald or green beryl (Mohs 7.5–8); the white cabochon has a waxy luster and may be opal (Mohs 5.5–6.5). Exact identification requires testing, as lighting and mounting obscure diagnostic features.

Identified August 26, 2026More gemstone →

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At a glance

Common name: Gemstone ring, likely emerald and opal
Scientific name: Green beryl (Be₃Al₂Si₆O₁₈), with probable common opal (hydrated amorphous silica, SiO₂·nH₂O)
Category: gemstone
Identified: August 26, 2026
Method: Standard

AI Estimated Value

Approximately $100–$2,000 for a commercial silver ring; fine natural emerald and precious opal jewelry can exceed $5,000.

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

Emerald forms in hydrothermal, pegmatitic, or metamorphic environments, commonly millions to billions of years old; opal forms much later from silica-rich groundwater filling cavities and fractures. The ring is a human-processed geological specimen.

Uses & applications

Used primarily in jewelry; emeralds can be highly valuable, while common opal is decorative and comparatively affordable.

Geological facts

Emerald’s green color is typically caused by chromium or vanadium; opal’s play-of-color, if present, results from ordered silica spheres, though this white stone appears non-play-of-color.

Field identification & locations

Likely emerald/green beryl and white opal, but emerald substitutes and other green gems are possible. Confirm with refractive index, specific gravity, microscopy, and laboratory testing; common sources include Colombia, Zambia, Brazil, Australia, and Ethiopia.