LR - 322 - Lady's 18KT white gold diamond halo engagement ring. Set in center, in eight prongs, is one round, brilliant cut diamond weighing 1.80ct, with color I, clarity VS 2. 58 diamonds set within the ring's halo and shank equal .58 carats total weight, with color G-H, clarity SI 1 to SI 2. Ring weighs 5.9 grams.