This precious collection bypass pear shaped blue sapphire engagement ring is excellent for your special someone. Engineered with 146 round diamonds weighing 0. 83 carats, and 1 pear shaped blue sapphire with a significant weight of 2. 13 carats in a glittering design. Additional Information: 146 round diamonds weighing 0. 83 carats, and 1 pear shaped blue sapphire with a significant weight of 2. 13 carats.