Sapphire, Diamond, White Gold Ring The ring features an oval-shaped sapphire measuring 15.14 x 13.37 x 8.97 mm and weighing approximately 14.00 carats, accented by full-cut diamonds weighing a total of approximately 1.60 carats, set in 18k white gold. Gross weight 11.20 grams. Size: 7 (sizeable)