2Pc Lot Alexandrite-0.30 Carats, SKU-TSCI23Stone Alexandrite Shape Size Oval 4. 00 x 2. 75mm Cut Faceted Color Green (As in Picture) Total. Wt. 0. 30ct Composition Natural Treatment Unheated & Untreated SKU Code TSCI23 Benefits Alexandrite Gemstone Alexandrite is a rare and extremely expensive gemstone type of the mineral family Chrysoberyl that exhibits an explicit color shift from blue green in natural sunlight to red purplish red or brownish red in the unnatural yellow light. In western