This magnificent lab-grown diamond engagement ring marks the start of forever together. 18k white gold a 4-carat oval-cut lab-grown diamond is the showstopping centerpiece three rows of round-cut lab-grown diamonds adorn the elegantly scalloped shank a signature element of lab-grown diamonds and milgrain detailing encircles the band, symbolizing unity and eternal love total lab-grown diamond weight is 4 1/2 carats independently certified this ring is available in limited sizes; if you don't see your size here, please visit a store to order your ring from the monique lhuillier bliss collection, available exclusively at kay