0.48 ctw Diamond Solitaire Engagement Ring18K white gold semi mount ring from the Noam Carver Collection, designed for a 2. 50ct round center in a 4 prong cathedral setting. Features milgrain detailing, a knife edge square shank, and 6 GH SI clustered round diamonds totaling 0. 48ctw in shared prong settings. Center sold separately. Available by special order in other metals, shapes, and sizes.