Ben Bridge: Diamonds - Round Brilliant of Cut

Round Brilliant of Cut - Size and Weight Comparisons
(when diamond is ideally proportioned)
Carat	Diameter in	Carat	Diameter in	Carat	Diameter in
Weight	mm	Weight	mm	Weight	mm
1/150	1.15	.15	3.4	1.50	7.4
1/100	1.35	.20	3.8	1.75	7.8
1/70	1.56	.25	4.1	2.00	8.2
1/50	1.72	.33	4.4	2.25	8.6
1/40	1.8	.40	4.8	2.50	9.0
1/33	2.0	.50	5.2	3.00	9.3
.03	2.0	.65	5.6	4.00	10.2
1/25	2.2	.75	5.9	5.00	11.0
.05	2.5	.85	6.2	6.00	11.7
.07	2.7	1.00	6.5	7.00	12.4
.10	3.0	1.25	7.0	8.00	13.0