White Topaz & Diamond Necklace and Earring Set. Features earrings of 18KT gold over sterling silver pierce style with 2 oval cut genuine white topaz and 10 single cut genuine diamonds with solid 14KT gold posts. Necklace is 18KT gold over sterling silver with a single oval cut genuine white topaz and 9 single cut genuine diamonds on a 17" adjustable chain. Total gem weight approximately 4 Carats. 1 lb each.