This petals collection halo radiant diamond engagement ring is excellent for your love one. Crafted with 40 round diamonds weighing 0. 51 carats, and 1 radiant cut diamond with a significant weight of 1. 71 carats in a charming design. Additional Information: 40 round diamonds weighing 0. 51 carats, and 1 radiant cut diamond with a significant weight of 1. 71 carats.