This 18k white gold accented halo semi-mount engagement ring features 40 round brilliant cut diamonds, totaling .34 carats, set in the halo and down the shank. With an accented square halo, this ring grants you a unique look. 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 center. An imitation diamond (cubic zirconia) is set in the center here to aid you in visualizing the final look.