Guide to Diamond Sizes
Carat |
Points |
Milimeter
Equivalent |
1/200 |
1/2 |
1.0 |
1/150 |
2/3 |
1.1 |
1/125 |
0.8 |
1.2 |
1/100 |
1.0 |
1.3 |
1/80 |
11/4 |
1.4 |
1/64 |
11/2 |
1.5 |
1/50 |
2.0 |
1.7 |
1/40 |
21/2 |
1.8 |
1/32 |
3.0 |
1.9 |
1/25 |
4.0 |
2.2 |
1/20 |
5.0 |
2.4 |
1/16 |
6.0 |
2.6 |
1/14 |
7.0 |
2.7 |
1/12 |
8.0 |
2.8 |
1/11 |
9.0 |
2.9 |
1/10 |
10.0 |
3.0 |
1/9 |
11.0 |
3-1/8 |
1/8 |
12 |
3-1/4 |
3/16 |
18 |
3-5/8 |
1/5 |
20 |
3-3/4 |
1/4 |
25 |
4.0 |
1/3 |
33 |
4-1/2 |
3/8 |
38 |
4-3/4 |
1/2 |
50 |
5-1/8 |
5/8 |
65 |
5-1/2 |
3/4 |
75 |
6.0 |
1.0 |
100 |
6-1/2 |
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