This 18k white gold halo semi-mount engagement ring features 58 round brilliant cut diamonds, totaling 1/4 carats, accented by a halo of 20 baguette sapphires, totaling 1/5 carats. 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.