Round Ruby - July Birthstones

1.00 mm (0.005 ct) 1.30 mm (0.01 ct) 1.50 mm (0.02 ct) 1.75 mm (0.03 ct) 2.00 mm (0.04 ct) 2.50 mm (0.08 ct) 3.00 mm (0.15 ct) 3.50 mm (0.20 ct) 4.00 mm (0.30 ct) 4.50 mm (0.45 ct) 5.00 mm (0.60 ct) 5.50 mm (0.75 ct) 6.00 mm (1.00 ct) 6.50 mm (1.25 ct) 7.00 mm (1.50 ct)