0.72 ctw Diamond Solitaire Engagement Ring18K white gold 3 row semi mount ring designed for a 2. 50ct round center in a 4 prong crown style setting. Features 0. 72ctw bezel set round diamonds along the band. In store ring is a sample. Available by special order only. Other metal colors, types, diamond shapes, and sizes are also available by special order. Center sold separately.