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Lab Grown Diamond Jewellery

Guide

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Size Guide

Diameter in mm
Circumference in mm
Australia & New Zealand
USA & Canada
15.1
47.43
I
4 1/2
15.5
48.69
J
4 3/4
16
50.26
K
5 1/4
16.3
51.20
L
5 3/4
16.7
52.46
M
6 1/4
17.1
53.72
N
6 3/4
17.4
54.66
O
7 1/4
17.7
55.6
P
7 3/4
18.1
56.86
Q
8 1/4
18.5
58.11
R
8 3/4
18.9
59.37
S
9 1/4
19.4
60.94
T
9 3/4
19.8
62.2
U
10 1/4
20.3
63.77
V
10 3/4