If you are tight on budget, but still want to buy a diamond engagement ring, try a semi-mount ring. It allows you to select the center stone, considerably cutting down costs. This semi-mount diamond engagement ring is an option. It features a 14 karat white gold prong raised Emerald shape center mount that holds your chosen 7x5MM Emerald cut center stone, ranging 0.85 ctw to 1.20 ctw. As it is semi-mount, the rest of the ring comes pre-decorated. 21 each prong set round cut diamonds, total 42, embellish the bypass arms, while 10 each prong set round cut diamonds, total 20, adorn the other split arm on either side. The semi-mount ring is styled in 14 karat yellow and white gold. Total diamond weight is 5/8 ctw.