1/2 ctw Round Cut Diamond Semi-Mount Engagement Ring in 14K White Gold Semi-mount engagement rings are the best choice if you wish to have a center stone of your liking for the ring. With a semi-mount ring you can choose the size of the center mount, but it should be of the right shape and stipulated size to fit the mount designed for the ring. This ring allows the installation of a round mount, your choice of center stone ranging from 0.85 carat to 1.20 carat. Apart from the center stone, the ring displays a charming design and diamond layout. It features 12 prong set round cut diamonds that form a halo around the center mount. The split shank is further enhanced by 20 half channel pave set round cut diamonds, 5 each on the 4 arms. A milgrain border highlights the shank and the gallery region. The ring is crafted in 14 karat white gold. Total diamond weight is 1/2 ctw.