Diamond Conversion Chart
.09 to .13 is a 1/10th
.14 to .17 is a 1/6th
.18 to .23 is a 1/5th
.24 to .28 is a 1/4
.29 to .34 is 1/3
.35 to .44 is 3/8
.45 to .55 is a 1/2
.56 to .65 5/8
.66 to .72 is 7/10
.73 to .78 is 3/4
.79 to .86 is 8/10
.87 to .95 is 7/8
.96 to 1.05 is 1 ct