This exceptional 4.52-carat natural diaspore showcases the gemstone's most coveted characteristic—a mesmerizing color-change phenomenon that shifts from khaki green in daylight to raspberry red under incandescent light. Expertly faceted in a refined cushion cut, this Turkish specimen measures 13.5 x 7.0 x 5.5 mm and displays slightly included clarity. Completely unheated and untreated, it represents an authentic collector's piece for those who appreciate rare gemstones with distinctive optical properties and natural beauty.