CTTW Chart
Diamond Carat Weights and Tolerance Range
Diamond Accent
0.001 - 0.039
Diamond Weight |
Carat Weight Variance Range |
|
|
1/20 |
.04 -.06 |
1/15 |
.065 -.08 |
1/10 |
0.085 - 0.11 |
1/8 |
0.115 - 0.14 |
1/6 |
0.145 - 0.17 |
1/5 |
0.18 - 0.22 |
1/4 |
0.23 - 0.28 |
1/3 |
0.29 - 0.36 |
3/8 |
0.37 - 0.44 |
1/2 |
0.45 - 0.57 |
5/8 |
0.58 - 0.68 |
3/4 |
0.69 - 0.79 |
7/8 |
0.80 - 0.94 |
1 |
0.95 - 1.11 |
1 1/8 |
1.115 - 1.14 |
1 1/6 |
1.145 - 1.17 |
1 1/5 |
1.18 - 1.22 |
1 1/4 |
1.23 - 1.28 |
1 1/3 |
1.29 - 1.36 |
1 3/8 |
1.37 - 1.44 |
1 1/2 |
1.45 - 1.57 |
1 5/8 |
1.58 -1.68 |
1 3/4 |
1.69 - 1.79 |
1 7/8 |
1.80 - 1.94 |
2 |
1.95 - 2.11 |
2 1/8 |
2.115 - 2.14 |
2 1/6 |
2.145 - 2.17 |
2 1/5 |
2.18 - 2.22 |
2 1/4 |
2.23 - 2.28 |
2 1/3 |
2.29 - 2.36 |
2 3/8 |
2.37 -2.44 |
2 1/2 |
2.45 - 2.57 |
2 5/8 |
2.58 -2.68 |
2 3/4 |
2.69 - 2.79 |
2 7/8 |
2.80 - 2.94 |
3 |
2.95 - 3.11 |
3 1/8 |
3.115 - 3.14 |
3 1/6 |
3.145 - 3.17 |
3 1/5 |
3.18 - 3.22 |
3 1/4 |
3.23 - 3.28 |
3 1/3 |
3.29 -3.36 |
3 3/8 |
3.37 - 3.44 |
3 1/2 |
3.45 - 3.57 |
3 5/8 |
3.58 - 3.68 |
3 3/4 |
3.69 - 3.79 |
3 7/8 |
3.80 - 3.94 |
4 |
3.95 - 4.11 |
4 1/8 |
4.115 - 4.14 |
4 1/6 |
4.145 - 4.17 |
4 1/5 |
4.18 - 4.22 |
4 1/4 |
4.23 - 4.28 |
4 1/3 |
4.29 - 4.36 |
4 3/8 |
4.37 - 4.44 |
4 1/2 |
4.45 - 4.57 |
4 5/8 |
4.58 - 4.68 |
4 3/4 |
4.69 - 4.79 |
4 7/8 |
4.80 - 4.94 |
5 |
4.95 - 5.11 |
5 1/8 |
5.115 - 5.14 |
5 1/6 |
5.145 - 5.17 |
5 1/5 |
5.18 - 5.22 |
5 1/4 |
5.23 - 5.28 |
5 1/3 |
5.29 - 5.36 |
5 3/8 |
5.37 - 5.44 |
5 1/2 |
5.45 - 5.57 |
5 5/8 |
5.58 - 5.68 |
5 3/4 |
5.69 - 5.79 |
5 7/8 |
5.80 - 5.94 |
6 |
5.95 - 6.11 |
6 1/8 |
6.115 - 6.14 |
6 1/6 |
6.145 - 6.17 |
6 1/5 |
6.18 - 6.22 |
6 1/4 |
6.23 - 6.28 |
6 1/3 |
6.29 - 6.36 |
6 3/8 |
6.37 - 6.44 |
6 1/2 |
6.45 - 6.57 |
6 5/8 |
6.58 - 6.68 |
6 3/4 |
6.69 - 6.79 |
6 7/8 |
6.80 - 6.94 |
7 |
6.95 - 7.11 |