1.15 ctw Diamond Three-Stone Engagement Ring18K white gold hidden halo semi mount ring with a four prong setting for a 2. 50 carat emerald cut center. Accented with 54 round diamonds totaling 0. 45 carats and 2 emerald cut diamonds totaling 0. 70 carats, all four prong set. Diamonds are FG color and VS clarity. Center sold separately. Available by special order in other metals, shapes, and sizes.