This is a shiny AAA Oval Loose Russian Lab Created Alexandrite of 10×8 mm. Approximate Gemstone Weight: 2.68-3.40 Carats. Color may vary from gemstone to gemstone really slightly., GEMSTONE: Russian Lab Created Alexandrite, SHAPE: Oval, AVERAGE COLOR: Dark Green weather change to Purple, AVERAGE QUALITY: AAA, MINIMUM CARAT TOTAL WEIGHT:2.68 -3.40, GEMSTONE DIMENSIONS:10 x8 mm, NUMBER OF STONES:1, COLOR: Green change to Purple, ORIGIN: Russian, MINDIMENSION:8.00 mm, MAXDIMENSION:10.00 mm, ACCESSORY TYPE: Loose Alexandrite, PRODUCT TYPE: Loose Russian Lab Created Alexandrite, GENDER: Mens-Womens, MATERIAL: Gemstone, STONE CREATION METHOD: Synthetic, TREATMENT METHOD: Treated.