0.31 ctw Diamond Hidden Halo Engagement RingThis semi mount ring from the Noam Carver Collection is crafted in 18K white gold with a hidden halo and 3 4 shank design. It features a six prong setting designed to hold a 2. 00 carat marquise crown size. The band is accented with 46 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. Center sold separately.