0.31 ctw Diamond Halo Engagement RingThis semi mount ring is crafted in 14K yellow gold with a marquise halo design accented by milgrain detail and a cathedral setting. It features a six prong setting designed to hold a 1. 00 carat marquise crown size. The halo and band are accented with 42 round diamonds totaling 0. 31 carats in prong settings. The in store ring is a sample and available by special order only. Other metal colors, types, diamond shapes, and sizes can also be ordered.