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Round diamond compare size table

Size (mm)Moissanite Average WeightDiamond Equivalent Weight
30.110.11
3.50.170.18
40.240.25
4.50.310.33
50.480.5
5.50.560.6
60.750.8
6.511.1
71.21.3
7.51.51.67
81.952
8.52.442.5
92.682.75
9.53.23.5
103.83.9
10.54.24.4
114.74.85
11.55.75.85
126.16.5
12.56.77

Oval diamond compare size table

Size (mm)Moissanite Average WeightDiamond Equivalent Weight
5 x 30.180.21
6 x 40.460.5
7 x 50.710.75
8 x 61.21.25
9 x 71.82
10 x 82.52.5
11 x 93.683.85
12 x 104.95.05
14 x 105.65.81

Pear diamond compare size table

Size (mm)Moissanite Average WeightDiamond Equivalent Weight
5 x 30.20.25
6 x 40.40.5
7 x 50.730.75
8 x 51.21.25
9 x 61.51.6
10 x 72.32.5
12 x 833

Marquise diamond compare size table

Size (mm)Moissanite Average WeightDiamond Equivalent Weight
4 x 20.080.1
5 x 2.50.120.14
6 x 30.20.25
7 x 3.50.30.33
8 x 40.560.5
9 x 4.50.630.75
10 x 511
11 x 5.51.151.25
12 x 61.481.5
13 x 6.51.852
14 x 72.32.5

Emerald diamond compare size table

Size (mm)Moissanite Average WeightDiamond Equivalent Weight
4 x 20.170.15
5 x 30.30.29
6 x 40.60.5
7 x 511
8 X 61.81.75
9 X 72.752.5
10 X 83.763.79
11 X 95.255.21
12 X 106.886

Radiant diamond compare size table_copy

Size (mm)Moissanite Average WeightDiamond Equivalent Weight
5 x 30.330.31
6 x 40.610.5
7 x 511
8 x 61.82
9 x 72.52.5
10 x 83.53.5
11 x 95.195.05
12 x 106.236.79
14 x 108.28.47

Cushion diamond compare size table

Size (mm)Moissanite Average WeightDiamond Equivalent Weight
30.120.13
3.50.190.22
40.30.33
4.50.420.5
50.570.6
5.50.750.8
60.961.1
6.51.211.3
71.491.7
7.51.82
82.152.4
8.52.542.8
92.983.3
9.53.744.2
104.185.02
10.54.995.81
115.796.68

Asscher diamond compare size table

Size (mm)Moissanite Average WeightDiamond Equivalent Weight
30.170.18
3.50.270.29
40.360.39
4.50.470.5
50.810.75
5.50.931
61.191.25
6.51.451.5
71.92
7.52.42.5
82.93
8.53.73.67
93.974.12

Princess diamond compare size table

Size (mm)Moissanite Average WeightDiamond Equivalent Weight
30.170.18
3.50.270.29
40.360.39
4.50.470.5
50.810.75
5.50.931
61.191.25
6.51.451.5
71.92
7.52.42.5
82.93
8.53.73.67
93.974.12

Rings Size guide By ocean star

US CAUK AU IE NZJP IN CN SAES IT NL CHInside-Diameter & Circumference (mm)
3F44.2514.05 & 44.14
3.25F.5–4.7514.24 & 44.74
3.5G55.514.45 & 45.40
3.75G.56614.65 & 46.02
4H76.7514.88 & 46.80
4.25H.5–7.515.09 & 47.40
4.5I8815.29 & 48.00
4.75J–8.7515.49 & 48.70
5J 1/299.2515.70 & 49.30
5.25K–1015.90 & 50.00
5.5K 1/21010.516.10 & 50.60
5.75L–11.2516.31 & 51.20
6L 1/21111.7516.51 & 51.90
6.25M1212.516.71 & 52.50
6.5M 1/21313.2516.92 & 53.10
6.75N–13.7517.12 & 53.80
7N 1/21414.517.32 & 54.40
7.25O–1517.53 & 55.10
7.5O 1/21515.7517.73 & 55.70
7.75P–16.2517.93 & 56.30
8P 1/2161718.14 & 57.00
8.25Q–17.518.34 & 57.60
8.5Q 1/21718.2518.54 & 58.30
8.75R–1918.75 & 58.90
9R 1/21819.518.95 & 59.50
9.25S–20.2519.15 & 60.20
9.5S 1/21920.7519.35 & 60.80
9.75T–21.519.56 & 61.40
10T 1/2202219.76 & 62.10
10.25U2122.7519.96 & 62.70
10.5U 1/22223.2520.17 & 63.40
10.75V–2420.37 & 64.00
11V 1/22324.7520.57 & 64.60
11.25W–25.2520.78 & 65.30
11.5W 1/2242620.98 & 65.90
11.75X–26.521.18 & 66.60
12X 1/22527.2521.39 & 67.20
12.25Y–27.7521.59 & 67.80
12.5Z2628.521.79 & 68.50
12.75Z 1/2–2922.00 & 69.10
13–2729.7522.20 & 69.70
13.25Z1–30.522.40 & 70.40
13.5––3122.61 & 71.00
13.75Z2–31.7522.81 & 71.70
14Z3–32.2523.01 & 72.30
14.25––3323.22 & 72.90
14.5Z4–33.523.42 & 73.60
14.75––34.2523.62 & 74.20
15––34.7524.23 & 76.10
US CAUK AU IE NZJP IN CN SAES IT NL CHInside-Diameter & Cercumferene (mm)US CAUK AU IE NZJP IN CN SAES IT NL CHInside-Diameter & Cercumferene (mm)
3F44.2514.05 & 44.149.25S–20.2519.15 & 60.20
3.25F.5–4.7514.24 & 44.749.5S 1/21920.7519.35 & 60.80
3.5G55.514.45 & 45.409.75T–21.519.56 & 61.40
3.75G.56614.65 & 46.0210T 1/2202219.76 & 62.10
4H76.7514.88 & 46.8010.25U2122.7519.96 & 62.70
4.25H.5–7.515.09 & 47.4010.5U 1/22223.2520.17 & 63.40
4.5I8815.29 & 48.0010.75V–2420.37 & 64.00
4.75J–8.7515.49 & 48.7011V 1/22324.7520.57 & 64.60
5J 1/299.2515.70 & 49.3011.25W–25.2520.78 & 65.30
5.25K–1015.90 & 50.0011.5W 1/2242620.98 & 65.90
5.5K 1/21010.516.10 & 50.6011.75X–26.521.18 & 66.60
5.75L–11.2516.31 & 51.2012X 1/22527.2521.39 & 67.20
6L 1/21111.7516.51 & 51.9012.25Y–27.7521.59 & 67.80
6.25M1212.516.71 & 52.5012.5Z2628.521.79 & 68.50
6.5M 1/21313.2516.92 & 53.1012.75Z 1/2–2922.00 & 69.10
6.75N–13.7517.12 & 53.8013–2729.7522.20 & 69.70
7N 1/21414.517.32 & 54.4013.25Z1–30.522.40 & 70.40
7.25O–1517.53 & 55.1013.5––3122.61 & 71.00
7.5O 1/21515.7517.73 & 55.7013.75Z2–31.7522.81 & 71.70
7.75P–16.2517.93 & 56.3014Z3–32.2523.01 & 72.30
8P 1/2161718.14 & 57.0014.25––3323.22 & 72.90
8.25Q–17.518.34 & 57.6014.5Z4–33.523.42 & 73.60
8.5Q 1/21718.2518.54 & 58.3014.75––34.2523.62 & 74.20
8.75R–1918.75 & 58.9015––34.7524.23 & 76.10
9R 1/21819.518.95 & 59.50
Size (mm)
Moissanite Average Weight
Diamond Equivalent Weight

3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5

0.11
0.17
0.24
0.31
0.48
0.56
0.75
1
1.2
1.5
1.95
2.44
2.68
3.2
3.8
4.2
4.7
5.7
6.1
6.7

0.11
0.18
0.25
0.33
0.5
0.6
0.8
1.1
1.3
1.67
2
2.5
2.75
3.5
3.9
4.4
4.85
5.85
6.5
7

Size (mm)
Moissanite Average Weight
Diamond Equivalent Weight

5 x 3
6 x 4
7 x 5
8 x 6
9 x 7
10 x 8
11 x 9
12 x 10
14 x 10

0.18
0.46
0.71
1.2
1.8
2.5
3.68
4.9
5.6

0.21
0.5
0.75
1.25
2
2.5
3.85
5.05
5.81

Size (mm)
Moissanite Average Weight
Diamond Equivalent Weight

5 x 3
6 x 4
7 x 5
8 x 5
9 x 6
10 x 7
12 x 8

0.2
0.4
0.73
1.2
1.5
2.3
3

0.25
0.5
0.75
1.25
1.6
2.5
3

Size (mm)
Moissanite Average Weight
Diamond Equivalent Weight

4 x 2
5 x 2.5
6 x 3
7 x 3.5
8 x 4
9 x 4.5
10 x 5
11 x 5.5
12 x 6
13 x 6.5
14 x 7

0.08
0.12
0.2
0.3
0.56
0.63
1
1.15
1.48
1.85
2.3

0.1
0.14
0.25
0.33
0.5
0.75
1
1.25
1.5
2
2.5

Size (mm)
Moissanite Average Weight
Diamond Equivalent Weight

4 x 2
5 x 3
6 x 4
7 x 5
8 X 6
9 X 7
10 X 8
11 X 9
12 X 10

0.17
0.3
0.6
1
1.8
2.75
3.76
5.25
6.88

0.15
0.29
0.5
1
1.75
2.5
3.79
5.21
6

Size (mm)
Moissanite Average Weight
Diamond Equivalent Weight

5 x 3
6 x 4
7 x 5
8 x 6
9 x 7
10 x 8
11 x 9
12 x 10
14 x 10

0.33
0.61
1
1.8
2.5
3.5
5.19
6.23
8.2

0.31
0.5
1
2
2.5
3.5
5.05
6.79
8.47

Size (mm)
Moissanite Average Weight
Diamond Equivalent Weight

3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11

0.12
0.19
0.3
0.42
0.57
0.75
0.96
1.21
1.49
1.8
2.15
2.54
2.98
3.74
4.18
4.99
5.79

0.13
0.22
0.33
0.5
0.6
0.8
1.1
1.3
1.7
2
2.4
2.8
3.3
4.2
5.02
5.81
6.68

Size (mm)
Moissanite Average Weight
Diamond Equivalent Weight

3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9

0.17
0.27
0.36
0.47
0.81
0.93
1.19
1.45
1.9
2.4
2.9
3.7
3.97

0.18
0.29
0.39
0.5
0.75
1
1.25
1.5
2
2.5
3
3.67
4.12

Size (mm)
Moissanite Average Weight
Diamond Equivalent Weight

3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9

0.17
0.27
0.36
0.47
0.81
0.93
1.19
1.45
1.9
2.4
2.9
3.7
3.97

0.18
0.29
0.39
0.5
0.75
1
1.25
1.5
2
2.5
3
3.67
4.12

US CA
UK AU IE NZ
JP IN CN SA
ES IT NL CH
Inside-Diameter & Cercumferene (mm)
US CA
UK AU IE NZ
JP IN CN SA
ES IT NL CH
Inside-Diameter & Cercumferene (mm)

3
3.25
3.5
3.75
4
4.25
4.5
4.75
5
5.25
5.5
5.75
6
6.25
6.5
6.75
7
7.25
7.5
7.75
8
8.25
8.5
8.75
9

F
F.5
G
G.5
H
H.5
I
J
J 1/2
K
K 1/2
L
L 1/2
M
M 1/2
N
N 1/2
O
O 1/2
P
P 1/2
Q
Q 1/2
R
R 1/2

4
-
5
6
7
-
8
-
9
-
10
-
11
12
13
-
14
-
15
-
16
-
17
-
18

4.25
4.75
5.5
6
6.75
7.5
8
8.75
9.25
10
10.5
11.25
11.75
12.5
13.25
13.75
14.5
15
15.75
16.25
17
17.5
18.25
19
19.5

14.05 & 44.14
14.24 & 44.74
14.45 & 45.40
14.65 & 46.02
14.88 & 46.80
15.09 & 47.40
15.29 & 48.00
15.49 & 48.70
15.70 & 49.30
15.90 & 50.00
16.10 & 50.60
16.31 & 51.20
16.51 & 51.90
16.71 & 52.50
16.92 & 53.10
17.12 & 53.80
17.32 & 54.40
17.53 & 55.10
17.73 & 55.70
17.93 & 56.30
18.14 & 57.00
18.34 & 57.60
18.54 & 58.30
18.75 & 58.90
18.95 & 59.50

9.25
9.5
9.75
10
10.25
10.5
10.75
11
11.25
11.5
11.75
12
12.25
12.5
12.75
13
13.25
13.5
13.75
14
14.25
14.5
14.75
15

S
S 1/2
T
T 1/2
U
U 1/2
V
V 1/2
W
W 1/2
X
X 1/2
Y
Z
Z 1/2
-
Z1
-
Z2
Z3
-
Z4
-
-

-
19
-
20
21
22
-
23
-
24
-
25
-
26
-
27
-
-
-
-
-
-
-
-

20.25
20.75
21.5
22
22.75
23.25
24
24.75
25.25
26
26.5
27.25
27.75
28.5
29
29.75
30.5
31
31.75
32.25
33
33.5
34.25
34.75

19.15 & 60.20
19.35 & 60.80
19.56 & 61.40
19.76 & 62.10
19.96 & 62.70
20.17 & 63.40
20.37 & 64.00
20.57 & 64.60
20.78 & 65.30
20.98 & 65.90
21.18 & 66.60
21.39 & 67.20
21.59 & 67.80
21.79 & 68.50
22.00 & 69.10
22.20 & 69.70
22.40 & 70.40
22.61 & 71.00
22.81 & 71.70
23.01 & 72.30
23.22 & 72.90
23.42 & 73.60
23.62 & 74.20
24.23 & 76.10

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