钻石的重量是钻石最主要的评价因素，通常钻石重量用克拉(ct)表示，标准的1克拉=200毫克=0.2克、1克拉=100分。
虽然钻石的切割工艺各异，但是钻石直径和重量之间还是有一个大概的比例，本期盒子君就与大家分享一下，钻石的直径与钻石重量的示意图与对照表!
收藏这份表单，轻松get钻石直径与重量的关系~
1.标准切工圆形钻石直径与重量关系示意图
2.圆形裸钻直径（毫米/mm）与重量（克拉/ct）对照表
重量CT
直径
0.01
1.40mm
0.02
1.76mm
0.03
2.02mm
0.04
2.22mm
0.05
2.39mm
0.06
2.54mm
0.07
2.67mm
0.08
2.80mm
0.09
2.91mm
0.10
3.01mm
0.11
3.11mm
0.12
3.20mm
0.13
3.29mm
0.14
3.37mm
0.15
3.45mm
0.16
3.52mm
0.17
3.60mm
0.18
3.66mm
0.19
3.73mm
0.20
3.80mm
0.21
3.86mm
0.22
3.92mm
0.23
3.98mm
0.24
4.03mm
0.25
4.09mm
0.26
4.14mm
0.27
4.19mm
0.28
4.25mm
0.29
4.30mm
0.30
4.34mm
0.31
4.39mm
0.32
4.44mm
0.33
4.48mm
0.34
4.53mm
0.35
4.57mm
0.36
4.62mm
0.37
4.66mm
0.38
4.70mm
0.39
4.74mm
0.40
4.78mm
0.41
4.82mm
0.42
4.86mm
0.43
4.90mm
0.44
4.94mm
0.45
4.97mm
0.46
5.01mm
0.47
5.05mm
0.48
5.08mm
0.49
5.12mm
0.50
5.15mm
重量CT
直径
0.51
5.19mm
0.52
5.22mm
0.53
5.25mm
0.54
5.28mm
0.55
5.32mm
0.56
5.35mm
0.57
5.38mm
0.58
5.41mm
0.59
5.44mm
0.60
5.47mm
0.61
5.50mm
0.62
5.53mm
0.63
5.56mm
0.64
5.59mm
0.65
5.62mm
0.66
5.65mm
0.67
5.68mm
0.68
5.71mm
0.69
5.73mm
0.70
5.76mm
0.71
5.79mm
0.72
5.82mm
0.73
5.84mm
0.74
5.87mm
0.75
5.90mm
0.76
5.92mm
0.77
5.95mm
0.78
5.97mm
0.79
6.00mm
0.80
6.02mm
0.81
6.05mm
0.82
6.07mm
0.83
6.10mm
0.84
6.12mm
0.85
6.15mm
0.86
6.17mm
0.87
6.20mm
0.88
6.22mm
0.89
6.24mm
0.90
6.27mm
0.91
6.29mm
0.92
6.31mm
0.93
6.33mm
0.94
6.36mm
0.95
6.38mm
0.96
6.40mm
0.97
6.42mm
0.98
6.45mm
0.99
6.47mm
1.00
6.49mm
重量CT
直径
1.02
6.53mm
1.04
6.58mm
1.06
6.62mm
1.08
6.66mm
1.10
6.70mm
1.12
6.74mm
1.14
6.78mm
1.16
6.82mm
1.18
6.86mm
1.20
6.90mm
1.22
6.93mm
1.24
6.97mm
1.26
7.01mm
1.28
7.05mm
1.30
7.08mm
1.32
7.12mm
1.34
7.16mm
1.36
7.19mm
1.38
7.23mm
1.40
7.26mm
1.42
7.29mm
1.44
7.33mm
1.46
7.36mm
1.48
7.40mm
1.50
7.43mm
1.52
7.46mm
1.54
7.49mm
1.56
7.53mm
1.58
7.56mm
1.60
7.59mm
1.62
7.62mm
1.64
7.65mm
1.66
7.68mm
1.68
7.72mm
1.70
7.75mm
1.72
7.78mm
1.74
7.81mm
1.76
7.84mm
1.78
7.87mm
1.80
7.89mm
1.82
7.92mm
1.84
7.95mm
1.86
7.98mm
1.88
8.01mm
1.90
8.04mm
1.92
8.06mm
1.94
8.09mm
1.96
8.12mm
1.98
8.15mm
2.00
8.18mm
重量CT
直径
2.05
8.24mm
2.10
8.31mm
2.15
8.38mm
2.20
8.44mm
2.25
8.50mm
2.30
8.57mm
2.35
8.63mm
2.40
8.68mm
2.45
8.75mm
2.50
8.81mm
2.55
8.87mm
2.60
8.92mm
2.65
8.98mm
2.70
9.01mm
2.75
9.09mm
2.80
9.15mm
2.85
9.20mm
2.90
9.26mm
2.95
9.31mm
3.00
9.36mm
3.10
9.46mm
3.20
9.56mm
3.30
9.66mm
3.40
9.76mm
3.50
9.85mm
3.60
9.95mm
3.70
10.04mm
3.80
10.13mm
3.90
10.22mm
4.00
10.39mm
4.10
10.69mm
4.20
10.47mm
4.30
10.55mm
4.40
10.63mm
4.50
10.71mm
4.60
10.79mm
4.70
10.87mm
4.80
10.95mm
4.90
11.02mm
5.00
11.10mm
5.50
11.46mm
6.00
11.79mm
6.50
12.11mm
7.00
12.41mm
7.50
12.70mm
8.00
12.98mm
8.50
13.24mm
9.00
13.50mm
9.50
13.75mm
10.00
13.98mm
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