DescriptionUNUSUAL GEMSTONE: COLOR CHANGE SPINEL
Color change gemstones are very unusual - depending on the type of light the gemstone is exposed to, a different color is perceived by the viewer. This Spinel has a distinct color change from blue to amethystine-purple depending on the light. Color change is rare in Spinels and more commonly found in Chrysoberyl (Alexandrite), Garnets and Sapphires. Color change gems have two approximately equal sized transmission windows which causes it to appear blue when the light is rich in blue wavelengths (e.g., fluorescent light) and red when the light is rich in red wavelengths (e.g., incandescent lighting). This rare gemstone has minor zoning, minor level of pinpoint inclusions, but otherwise is in fine condition. It is a facetted oval that measures 13.4 x 10.0 mm and weighs 6.76 carats.
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