gemstone

Faceted amber-brown gemstone ring (likely citrine)

Citrine, yellow-to-brown variety of quartz (SiO₂); identification from the image is tentative

AI-generated identification · may be incorrect

The rectangular faceted center stone is transparent amber-brown, with a glassy luster and no visible cleavage; quartz has a trigonal crystal structure and Mohs hardness 7. The surrounding small clear stones and metal setting cannot be identified reliably from the image.

Identified September 27, 2026More gemstone →

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Physical properties

Formation & geological history

If citrine, it formed as silica-rich quartz in geological veins or cavities, often through hydrothermal processes; natural deposits span multiple geological ages. Heat-treated amethyst is also commonly sold as citrine.

Uses & applications

Cut and set as jewelry; quartz is also used in glassmaking and electronics.

Geological facts

Much commercial citrine is heat-treated amethyst or smoky quartz, which can produce a deeper orange-brown color.

Field identification & locations

The warm color and faceting fit citrine, but topaz, glass, or another gemstone are possible; gemological testing is needed to confirm identity and natural versus treated origin. Citrine occurs notably in Brazil, Madagascar, and Zambia.