This natureal collection halo cushion cut yellow diamond engagement ring is immaculate for any get up. Designed with 16 round diamonds weighing 0. 15 carats, 2 cadillac diamonds with a total weight of 0. 40 carats, and 1 cushion cut diamond with a significant weight of 4. 05 carats in a lovely design. Additional Information: 16 round diamonds weighing 0. 15 carats, 2 cadillac diamonds with a total weight of 0. 40 carats, and 1 cushion cut diamond with a significant weight of 4. 05 carats.