The store will not work correctly when cookies are disabled.
JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.
X We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more .
Allow Cookies Reject Cookies
Home Diamond Carat Weights and Tolerance Ranges
Diamond Carat Weights and Tolerance Ranges
CaratLane would like to inform you that the carat weight of our jewelry indicates the total diamond weight of all the diamonds studded in a particular piece of jewelry. As per the given FTC guidelines, please find the below diamond carat weights and its respective tolerance ranges.
1 Carat & Under
Fraction
Bill Weight
Diamond Range
No Fraction
0-0.035
1/20
0.05
0.04-0.06
1/10
0.075
0.065-0.08
1/15
0.10
0.085-0.11
1/8
0.13
0.115-0.14
1/6
0.16
0.145-0.17
1/5
0.20
0.18-0.22
1/4
0.285
0.23-0.28
1/3
0.325
0-0.035
3/8
0.40
0.37-0.44
1/2
0.50
0.45-0.57
5/8
0.62
0.58-0.68
3/4
0.75
0.69-0.79
7/8
0.88
0.80-0.94
1
1.00
0.95-1.11
1 Carat +
Fraction
Bill Weight
Diamond Range
1 1/8
1.13
1.115-1.14
1 1/6
1.16
1.145-1.17
1 1/5
1.20
1.18-1.22
1 1/4
1.25
1.23-1.28
1 1/3
1.325
1.29-1.36
1 3/8
1.40
1.37-1.44
1 1/2
1.50
1.45-1.57
1 5/8
1.62
1.58-1.68
1 3/4
1.75
1.69-1.79
1 7/8
1.88
1.80-1.94
2
2.00
1.95-2.11
2 Carat +
Fraction
Bill Weight
Diamond Range
2 1/8
2.13
2.115-2.14
2 1/6
2.16
2.145-2.17
2 1/5
2.20
2.18-2.22
2 1/4
2.25
2.23-2.28
2 1/3
2.325
2.29-2.36
2 3/8
2.40
2.37-2.44
2 1/2
2.50
2.45-2.57
2 5/8
2.62
2.58-2.68
2 3/4
2.75
2.69-2.79
2 7/8
2.88
2.80-2.94
3
2.00
2.95-3.11
3 Carat +
Fraction
Bill Weight
Diamond Range
3 1/8
3.13
3.115-3.14
3 1/6
3.16
3.145-3.17
3 1/5
3.20
3.18-3.22
3 1/4
3.25
3.23-3.28
3 1/3
3.325
3.29-3.36
3 3/8
3.40
3.37-3.44
3 1/2
3.50
3.45-3.57
3 5/8
3.62
3.58-3.68
3 3/4
3.75
3.69-3.79
3 7/8
3.88
3.80-3.94
4
4.00
3.95-4.11
4 Carat +
Fraction
Bill Weight
Diamond Range
4 1/8
4.13
4.115-4.14
4 1/6
4.16
4.145-4.17
4 1/5
4.20
4.18-4.22
4 1/4
4.25
4.23-4.28
4 1/3
4.325
4.29-4.36
4 3/8
4.40
4.37-4.44
4 1/2
4.50
4.45-4.57
4 5/8
4.62
4.58-4.68
4 3/4
4.75
4.69-4.79
4 7/8
4.88
4.80-4.94
5
5.00
4.95-5.11
5 Carat +
Fraction
Bill Weight
Diamond Range
5 1/8
5.13
5.115-5.14
5 1/6
5.16
5.145-5.17
5 1/5
5.20
5.18-5.22
5 1/4
5.25
5.23-5.28
5 1/3
5.325
5.29-5.36
5 3/8
5.40
5.37-5.44
5 1/2
5.50
5.45-5.57
5 5/8
5.62
5.58-5.68
5 3/4
5.75
5.69-5.79
5 7/8
5.88
5.80-5.94
6
62.00
5.95-6.11
6 Carat +
Fraction
Bill Weight
Diamond Range
6 1/8
6.13
6.115-6.14
6 1/6
6.16
6.145-6.17
6 1/5
6.20
6.18-6.22
6 1/4
6.25
6.23-6.28
6 1/3
6.325
6.29-6.36
6 3/8
6.40
6.37-6.44
6 1/2
6.50
6.45-6.57
6 5/8
6.62
6.58-6.68
6 3/4
6.75
6.69-6.79
6 7/8
6.88
6.80-6.94
7
7.00
7.95-7.11
CAN
IND
