Diamond carat weight and tolerances

For each diamond shape, the dimensions of the diamond may affect the carat weight. Our target carat weight allows for minimal variance in the acceptable tolerance range to ensure consistency and quality in our sustainably created diamonds. Total carat weight is in reference to the total weight of all the diamonds in a piece of jewelry and the tolerance of total carat weight can be calculated by summing all the minimum and then maximum carat weights of the diamond sizes featured in the jewelry.

Learn more about carat weight here.

Round Brilliant diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/6	0.15	0.17
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.38	0.42
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.71	0.79
1	0.96	1.03
1 1/2	1.44	1.56
2	1.93	2.07

Emerald diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.55	0.65
3/4	0.71	0.79
1	0.95	1.05

Oval diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.56	0.63
3/4	0.71	0.79
1	0.95	1.05

Pear diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.71	0.79
1	0.95	1.05

Marquise diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.56	0.64
3/4	0.71	0.79
1	0.95	1.05

Trillion diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.38	0.42
1/2	0.48	0.52
5/8	0.57	0.63
3/4	0.72	0.78
1	0.96	1.04

Baguette diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.56	0.64
3/4	0.71	0.79
1	0.95	1.05

Cushion diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.56	0.64
3/4	0.71	0.79
1	0.95	1.05

Hexagon diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.71	0.79
1	0.96	1.04

Keystone diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.71	0.79
1	0.96	1.04

Shield diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.38	0.42
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.72	0.78
1	0.96	1.04

Lozenge diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.38	0.42
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.72	0.78
1	0.96	1.04

Half Moon diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.71	0.79
1	0.95	1.05

Asscher diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.38	0.42
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.72	0.78
1	0.96	1.04

Octavia diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.38	0.42
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.72	0.78
1	0.96	1.04

Princess diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/10	0.10	0.12
1/5	0.20	0.22
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.38	0.42
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.72	0.78
1	0.96	1.04

Radiant diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.38	0.42
1/2	0.47	0.53
5/8	0.57	0.63
3/4	0.72	0.78
1	0.96	1.04

Tapered Baguette diamonds

Target carat weight	Minimum carat weight	Maximum carat weight
1/4	0.23	0.27
1/3	0.28	0.32
3/8	0.37	0.43
1/2	0.47	0.53
5/8	0.56	0.64
3/4	0.71	0.79
1	0.95	1.05