Princess Diana, .85 CT. Diamond halo & 3.00 Ct Sapphire Ring Center oval shaped stone is 10.74-8.60 x 3.40 mm in diameter. Weight of stone is approximately 3.00 Carats. Stone is lab created sapphire.Diamond Halo (12) are 2.60mm each. The total weight of the diamonds is .85 carat. Quality of the diamonds are SI2 clarity and H color.The ring measures 14 x 17 mm long and is a size 6. Yellow gold, 14 karat. Ring size is 6.5GIA Gemologist inspected and evaluated.