gemstone

Green cabochon gemstone, likely nephrite jade

Nephrite jade—interlocking amphibole fibers, chiefly tremolite-actinolite, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂

AI-generated identification · may be incorrect

Polished translucent-to-opaque deep green cabochon with waxy/glassy luster; Mohs hardness about 6–6.5, tough, non-cleavable, and typically cryptocrystalline/fibrous. The silver-colored setting is human-made, but the green stone is geological material.

Identified September 15, 2026More gemstone →

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At a glance

Common name: Green cabochon gemstone, likely nephrite jade
Scientific name: Nephrite jade—interlocking amphibole fibers, chiefly tremolite-actinolite, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂
Category: gemstone
Identified: September 15, 2026
Method: Standard

AI Estimated Value

Approximately $10–$100 for a common mounted imitation or low-grade cabochon; about $100–$500+ for authenticated, fine-quality jade in a precious-metal setting.

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

Forms through metamorphism and metasomatism of magnesium-rich rocks, commonly in serpentinite zones; deposits range from Paleozoic to Cenozoic in age. Common sources include British Columbia, Wyoming, Siberia, China, New Zealand, and Taiwan.

Uses & applications

Used for carvings, beads, ornaments, cabochon jewelry, and cultural artifacts; its exceptional toughness makes it valuable for durable carvings. The ring appears silver-set, though the metal cannot be confirmed from the image.

Geological facts

The image is consistent with nephrite but cannot exclude jadeite jade, serpentine, aventurine, or dyed green chalcedony without testing. Jade identification commonly requires refractive index, specific gravity, microscopy, and sometimes spectroscopy.

Field identification & locations

Look for even green color, dense feel, waxy luster, and resistance to scratching; avoid relying on color alone. A gemological test is needed for a definitive identification.