0.18 ctw Diamond Solitaire Engagement RingThis Noam Carver Collection semi mount ring is crafted in 18K white gold with a hidden halo design. It features a three prong setting for a 2. 00 carat pear crown size center and is accented with 43 prong set round diamonds totaling 0. 18 carats. The in store ring is a sample and is available by special order only. Other metal colors, types, diamond shapes, and sizes are also available by special order. Center sold separately.