5/8 Ctw Pear Cut Semi-Mount Double Row Diamond Engagement Ring in 14K White Gold Want to buy a diamond engagement ring, but wish to have a diamond of your choice? Then a semi mount ring would be an ideal choice. Depending on the diamond shape you want, you could choose a ring that suits your need. If you are keen on a pear shape, this might be the ring for you. You can custom order a pear shape center stone ranging from 0.85 carat to 1.20 carat that suits your taste and pocket. The 14 karat white gold ring comes preset with 52 prong set round cut diamonds surrounding the center mount. 12 round cut diamonds embellish the shank. Total diamond weight is 1 ctw.