This is a beautiful Loose Heart Lab developed Russian alexandrite of AAA top quality gauging 6 mm. Approximate Gemstone Weight: 0.85-1.25 Carats., GEMSTONE: Lab developed Russian alexandrite, SHAPE: Heart, AVERAGE COLOR: Dark Green change to Purple, AVERAGE QUALITY: AAA, MINIMUM CARAT TOTAL WEIGHT:0.85 -1.25, GEMSTONE DIMENSIONS:6 mm, NUMBER OF STONES:1, COLOR: Green adjustment to Purple, ORIGIN: Russian, MINDIMENSION:6.00 mm, MAXDIMENSION:6.00 mm, ACCESSORY TYPE: Loose Lab created Russian alexandrite, PRODUCT TYPE: Loose Lab created Russian alexandrite Gemstone, GENDER: Mens-Womens, MATERIAL: Gemstone, STONE CREATION METHOD: Synthetic, TREATMENT METHOD: Treated.