This signature collection halo marquise diamond engagement ring is immaculate for any celebration. Crafted with 12 round diamonds weighing 0. 09 carats, 18 round diamonds with a total weight of 0. 39 carats, 10 round diamonds with a combined weight of 0. 46 carats, and 1 marquise diamond with a significant weight of 2. 01 carats in an attractive setting. Additional Information: 12 round diamonds weighing 0. 09 carats, 18 round diamonds with a total weight of 0. 39 carats, 10 round diamonds with a combined weight of 0. 46 carats, and 1 marquise diamond with a significant weight of 2. 01 carats.