gemstone

Emerald (cut gemstone)

Beryl, Be₃Al₂(SiO₃)₆; green color typically from chromium and/or vanadium

AI-generated identification · may be incorrect

A polished, opaque-to-translucent deep-green stone with a vitreous luster and visible inclusions. Beryl has Mohs hardness 7.5–8 and a hexagonal crystal structure; the image alone cannot establish whether this is natural emerald or a simulant/treated stone.

Identified October 10, 2026More gemstone →

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Physical properties

Formation & geological history

Natural emeralds form in chromium- or vanadium-bearing rocks and beryllium-rich fluids, often in hydrothermal veins or metamorphic settings. Deposits range widely in age; major sources include Colombia, Zambia, Brazil, and Afghanistan.

Uses & applications

Used in jewelry and as a collector gemstone; lower-grade material may be carved or used decoratively.

Geological facts

Emerald is the green variety of beryl, and its characteristic inclusions are traditionally called a jardin (French for “garden”).

Field identification & locations

The rectangular cut and green color fit an emerald, but identification requires gemological testing; inclusions, refractive index, and spectroscopy help distinguish natural emerald from imitations. Commonly sourced from Colombia, Zambia, and Brazil.