Lab Grown Diamond

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Diameter(mm)

United States&
Canada

Europe

UK
&Austalia

Singapore
Japan

Hong Kong

Switzerland

14.1

F1/2

14.3

5 1/4

14.5

3.5

G 1/2

14.7

6 1/2

14.9

H 1/2

14.9

H 1/2

6 1/2

15.1

7 3/4

15.3

4.5

I 1/2

15.5

15.7

J 1/2

15.9

16.1

5.5

K 1/2

16.3

11 3/4

16.5

L 1/2

12 3/4

16.7

16.9

6.5

M 1/2

17.1

17.3

N 1/2

15 1/4

17.5

17.7

7.5

O 1/2

16 1/2