Cubic Zirconia Weight Chart

Use this chart to determine the approximate weight of particular CZ size and compare it to diamond weight

round

Round

pear

Pear

oval

Oval

Heart

Heart

marquise

Marquise

princess

Princess

trillion

Trillion

emerald

Emerald

triangle

Triangle

radiant

Radiant

 

Round C.Z. weight Diamond weight Oval C.Z. weight Diamond weight
1.25 0.013 0.01 5 x 3 0.35 0.21
1.5 0.023 0.015 5 x 4 0.55 0.32
1.75 0.037 0.02 6 x 4 0.73 0.43
2 0.06 0.03 6 x 5 1.04 0.61
2.25 0.08 0.04 7 x 5 1.3 0.76
2.5 0.1 0.05 7.5 x 5.5 1.67 0.98
2.75 0.15 0.08 8 x 6 2.06 1.21
3 0.18 0.11 9 x 6 2.4 1.41
3.25 0.24 0.14 9 x 7 3.16 1.86
3.5 0.29 0.17 10 x 8 4.31 2.54
3.75 0.36 0.21 12 x 8 5.09 2.99
4 0.43 0.25 10.5 x 8.5 4.9 2.88
4.25 0.48 0.28 11 x 9 6.54 3.85
4.5 0.61 0.36 12 x 10 8.59 5.05
4.75 0.74 0.44 14 x 10 9.87 5.81
5 0.79 0.46 13 x 11 10.28 6.05
5.25 0.95 0.56 14 x 12 13.96 8.21
5.5 1.13 0.66 15 x 12 14.89 8.76
5.75 1.3 0.76 16 x 12 15.84 9.32
6 1.43 0.84 18 x 13 21.86 12.86
6.25 1.58 0.93 20 x 15 32.17 18.92
6.5 1.75 1.03 22 x 16 40.84 24.02
6.75 2.11 1.24
7 2.17 1.28 Heart C.Z. weight Diamond weight
7.25 2.53 1.49 4 0.4 0.24
7.5 2.84 1.67 4.5 0.57 0.34
7.75 2.97 1.75 5 0.75 0.44
8 3.46 2.04 5.5 1.03 0.61
8.25 3.58 2.11 6 1.25 0.74
8.5 4.13 2.43 6.25 1.41 0.83
8.75 4.34 2.55 6.5 1.58 0.93
9 4.68 2.75 7 1.92 1.13
9.25 5.18 3.05 7.5 2.71 1.59
9.5 5.69 3.35 8 2.9 1.71
9.75 6.13 3.61 9 4.1 2.41
10 6.58 3.87 9.5 4.93 2.9
10.25 7.08 4.16 10 5.38 3.16
10.5 7.5 4.41 11 7.5 4.41
10.75 7.55 4.44 12 9.63 5.66
11 8.35 4.91 13 13.4 7.88
11.25 9.34 5.49 14 15.95 9.38
11.5 9.94 5.85 15 18.34 10.79
12 11.62 6.84 16 22.56 13.27
12.25 12.34 7.26 18 35.5 20.88
12.5 12.52 7.36 20 42.01 24.71
12.75 12.78 7.52
13 14.47 8.51 Marquise C.Z. weight Diamond weight
13.5 16.2 9.53 4 x 2 0.15 0.08
14 17.84 10.49 5 x 2.5 0.24 0.14
15 21.92 12.89 6 x 3 0.41 0.24
16 27.25 16.03 6.5 x 3.5 0.53 0.31
17 33.55 19.74 7 x 3.5 0.6 0.35
18 38.6 22.71 8 x 3.5 0.69 0.41
19 41.78 24.58 8 x 4 0.8 0.47
20 50.22 29.54 9 x 4.5 1.2 0.71
22 67.43 39.66 10 x 5 1.62 0.95
25 99.18 58.34 11 x 5.5 2.12 1.25
30 181.77 106.92 12 x 6 2.75 1.62
40 374.15 220.09 13 x 6.5 3.6 2.11
14 x 7 4.22 2.48
Pear C.Z. weight Diamond weight 15 x 7.5 5.25 3.09
5×4 0.6 0.35 16 x 8 6.57 3.86
6 x 4 0.67 0.39 17 x 8.5 8.3 4.88
6.50 x 4.50 0.97 0.57 18 x 9 9.61 5.65
7 x 5 1.21 0.71 20 x 10 13.49 7.94
8 x 5 1.38 0.81 22 x 11 16.28 9.58
8.5 x 5.5 1.83 1.08 30 x 15 36.5 21
9 x 6 2.26 1.33
9 x 7 2.98 1.75 Radiant C.Z. weight Diamond weight
10 x 7 3.06 1.8 4.50 x 3.50 0.58 0.34
10 x 8 4.19 2.46 5 x 3 0.52 0.31
11 x 7.50 4.44 2.61 6 x 3 0.7 0.41
11 x 8 5.1 3 6 x 4 1.03 0.6
12 x 8 5.06 2.98 6.50 x 4.50 1.41 0.83
12 x 9 5.85 3.44 7 x 5 1.94 1.14
13 x 8 5.04 2.98 7.5 x 5.5 2.5 1.47
14 x 8 5.9 3.47 8 x 6 2.96 1.74
13 x 9 6.99 4.11 8.5 x 6.5 3.8 2.24
14 x 9 7.01 4.12 9 x 7 4.46 2.62
15 x 9 8.6 5.06 9.50 x 7.50 5.4 3.18
14 x 10 9.2 5.41 10 x 8 5.94 3.49
13 x 11 9.61 5.65 11 x 9 8.58 5.05
15 x 10 9.78 5.75 12 x 9 10.3 6.06
16 x 10 10.66 6.27 11.50 x 10 10.97 6.45
17 x 10 10.99 6.46 12 x 10 11.55 6.79
15 x 11 12.52 7.36 14 x 10 14.4 8.47
17 x 11 13.68 8.05 13 x 11 15.86 9.33
18 x 11 13.84 8.14 13.50 x 11.50 17.32 10.19
16 x 12 15.29 8.99 14 x 12 20.64 12.14
18 x 12 15.9 9.35 20 x 10 22.85 13.44
18.5 x 12 17.9 10.53 16 x 12 23.08 13.58
18 x 13 19.83 11.66 18 x 13 33.68 19.81
19 x 12 17 10 20 x 15 47.86 28.15
19 x 13 20.79 12.23 24 x 16 69.6 40.94
20 x 14 24.92 14.66
23 x 13 25.89 15.23 Triangle C.Z. weight Diamond weight
22 x 14 26.3 15.47 3 0.21 0.12
20 x 15 28.65 16.85 3.5 0.3 0.18
23 x 14 26 15.29 4 0.4 0.24
25 x 15 30.02 17.66 4.25 0.54 0.32
25 x 20 64 37.65 4.5 0.63 0.37
5 0.76 0.45
Emerald C.Z. weight Diamond weight 5.25 0.9 0.53
5 x 3 0.5 0.29 5.5 1.13 0.66
6 x 4 1.13 0.66 5.75 1.2 0.71
6.5 x 4.5 1.49 0.88 6 1.3 0.76
7 x 5 1.81 1.06 6.25 1.46 0.86
8 x 6 2.95 1.74 6.5 1.6 0.94
8.5 x 6.5 3.69 2.17 6.75 1.73 1.02
9 x 7 4.46 2.62 7 1.89 1.11
9.5 x 7.5 5.46 3.21 7.25 2.25 1.32
10 x 8 6.44 3.79 7.5 2.47 1.45
12 x 8 8.13 4.78 7.75 2.88 1.69
11 x 9 8.85 5.21 8 3.04 1.79
13 x 9 10.84 6.38 8.25 3.16 1.86
12 x 10 11.82 6.95 9 3.66 2.15
14 x 10 14.42 8.48 9.25 4.32 2.54
13 x 11 15.52 9.13 9.5 5.13 3.02
14 x 12 19.15 11.26 9.75 5.52 3.25
15 x 11 19.51 11.48 10 5.98 3.52
16 x 12 24.18 14.22 10.25 6.17 3.63
18 x 13 32.86 19.33 11 8.05 4.74
20 x 15 44.03 25.9 12 10.25 6.03
13 13.8 8.12
Square / Princess C.Z. weight Diamond weight 14 15.94 9.83
3 0.3 0.18 15 17.92 10.54
3.25 0.44 0.26 20 49.44 29.08
3.5 0.5 0.29 25 89.96 52.92
3.75 0.53 0.31
4 0.66 0.39 Trillion C.Z. weight Diamond weight
4.25 0.74 0.44 3.5 0.28 0.16
4.5 0.95 0.56 3.75 0.32 0.19
4.75 1.08 0.64 4 0.39 0.23
5 1.21 0.71 4.25 0.46 0.27
5.5 1.68 0.99 4.5 0.53 0.31
6 2.1 1.24 4.75 0.63 0.37
6.5 2.71 1.59 5 0.72 0.42
7 3.33 1.96 5.25 0.83 0.49
7.5 4.08 2.4 5.5 0.93 0.55
7.75 4.66 2.74 5.75 1.08 0.64
8 5.12 3.01 6 1.19 0.7
8.25 5.5 3.24 6.25 1.28 0.75
8.5 6.24 3.67 6.5 1.55 0.91
8.75 6.97 4.1 6.75 1.66 0.98
9 7.01 4.12 7 1.87 1.1
9.5 8.65 5.09 7.5 2.06 1.21
9.75 9.12 5.36 8 2.97 1.75
10 9.56 5.62 8.5 3 1.76
10.25 10.19 5.99 9 3.99 2.35
11 12.64 7.44 10 5.3 3.12
11.5 16.05 9.44 11 6.22 3.66
12 16.18 9.52 12 8.33 4.9
13 21.86 12.86 13 10.91 6.42
14 25.75 15.15
16 40.94 24.08
18 55.14 32.44
20 72.52 42.66
22 99.73 58.66