0.15 ctw Diamond Solitaire Engagement Ring18K yellow gold Noam Carver Collection semi mount ring with a 6 prong setting for a 2. 00ct marquise crown size center. The design includes 6 cluster prong set round diamonds totaling 0. 15ctw. In store ring is a sample. Available by special order only. Other metal colors, metal types, diamond shapes, and sizes are also available by special order. Center sold separately.