The ring is marked .900 platinum and weighs 10.1 grams. Set in the center are 3 blue square natural sapphires with a total weight of .60 cts which is marked on the inside of the ring. The sapphires are surrounded by 20 French cuts and 8 round brilliant cut natural diamonds. The total diamond weight which is .63 cts is also marked on the inside of the ring . The diamonds are SI1 TO SI2 AND H in color. The ring wears to a size 7.5 and can be resized. The platinum may need a light polish.