1/2 ctw Octagonal Shape Crisscross Shank Round Cut Diamond Semi-Mount Engagement Ring in 14K White Gold Buying a semi-mount engagement ring means you can choose a center stone of your liking for it. As the rest of the ring comes pre-decorated, it becomes a convenient choice. This ring is designed to hold an emerald cut center stone ranging from 0.85 ctw to 1.20 ctw of your choice, on the prong raised top tier of the center mount. Embellishing the bordering lower border are 22 prong set round cut diamonds. The crisscross shank is accented with 44 prong set round cut diamonds, 22 on either side. An arch on the ring interior, is further decorated with 42 prong set round cut diamonds, 21 each at the front and back. The semi-mount ring is crafted in 14 karat white gold. Total diamond weight is 1/2 ctw.