Platinum, 8.26 CT. Sapphire, GIA 1.65 Ct Diamond Ring GIA certified color change sapphire weight of 8.26 carats. Measuring 12.19 x 11.02 x 6.94 mm setting is a halo of diamonds with (21) marquise diamonds, (21) pear diamonds measuring 1.65 carats Platinum setting, quality diamonds VS2 clarity. GIA gemologist inspected and evaluated