
gemstone
Yellow faceted gemstone, likely synthetic cubic zirconia or glass; species cannot be confirmed from the image
Undetermined; possible cubic zirconia (ZrO₂), a manufactured gemstone simulant
AI-generated identification · may be incorrectBrilliant-cut, transparent yellow stone with high apparent luster. Hardness and crystal structure cannot be identified visually; cubic zirconia is Mohs 8–8.5, while glass is about 5–6.
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Explore Yellow faceted gemstone, likely synthetic cubic zirconia or glass; species cannot be confirmed from the image in the encyclopedia →Identify your own rocks.
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Physical properties
Brilliant-cut, transparent yellow stone with high apparent luster. Hardness and crystal structure cannot be identified visually; cubic zirconia is Mohs 8–8.5, while glass is about 5–6.
Formation & geological history
The image shows a cut stone, not enough to determine its material or geological origin. If natural, yellow color may arise from trace elements or defects in the crystal; cubic zirconia is lab-grown.
Uses & applications
Used in jewelry as a colored gemstone or diamond simulant; value depends strongly on confirmed identity, size, color, and cut.
Geological facts
Yellow stones may include sapphire, citrine, diamond, and several simulants; visual color alone is not diagnostic.
Field identification & locations
Gemological testing—refractive index, specific gravity, and magnification—is needed to distinguish natural gems from simulants. The image does not establish a natural mineral species or locality.
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