This 18k white gold 3 stone semi-mount engagement ring features 4 round brilliant cut diamonds, totaling 0.50 carats, set on each side of the center stone and 2 set as a peek-a-boo in the undergallery. This ring is priced without the center gemstone, giving you the freedom to choose what you would like it to hold. This ring is designed to accommodate a round-shaped center. An imitation diamond (cubic zirconia) is set in the center here to aid you in visualizing the final look.