Let her know she's forever the one with this diamond engagement ring—and confirm your perfect couple status with available his and her wedding bands. 10k yellow gold and white rhodium the composite centerpiece and surrounding marquise-shaped halo sparkle with round-cut diamonds two rows of round-cut diamonds adorn the split shank total diamond weight is 3/8 carat this ring is part of a three-piece ensemble with coordinating his and her wedding bands (each sold separately) from the now + forever® bridal collection.