Ceylon Sapphire, Diamond, Platinum Ring The ring features an oval-shaped sapphire measuring 11.01 x 9.43 x 5.66 mm and weighing 5.22 carats, accented by full-cut diamonds weighing a total of 1.16 carats, set in platinum. An AGL report # 1085205, dated July 18, 2017, statingNatural Corundum, Origin Ceylon (Sri Lanka), No Gemological Evidence of Heat, Clarity Enhancement None, accompanies the sapphire. Gross weight 9.80 grams. Size: 6-1/2 (sizeable)