We take a digital image of every item before work is started,
this is then kept on file as a reference.
Ring Size Comparison Chart
PLEASE NOTE THE FIGURES IN THIS TABLE ARE FOR GUIDANCE ONLY
BRITISH, IRISH, AUSTRALIAN USA, CANADA DIAMETER IN MM DIAMETER IN INS CIRCUMFERENCE (IN MM) JAPAN EUROPE
  0000 9.91 .390      
  00 10.72 .422      
  0 11.53 .454      
A 1/2 11.95 .474 37.6    
A 1/2 3/4 12.18 .482      
B 1 12.37 .487 38.9 1  
B 1/2 1 1/4 12.60        
C 1 1/2 12.78 .503 40.2    
C 1/2 1 3/4 13.00       .5
D 2 13.21 .520 41.5 2 1.2
D 1/2 2 1/4 13.41       1.8
E 2 1/2 13.61 .536 42.7 3 2.4
E 1/2 2 3/4 13.83       3.00
F 3 14.05 .553 43.4 4 3.7
F 1/2 3 1/8 14.15       4.3
  3 1/4 14.25        
G 3 3/8 14.36     5 4.9
  3 1/2 14.45 .569      
G 1/2 3 5/8 14.56     6 5.6
H 3 3/4 14.65        
H 1/2 4 14.86 .585 46.5 7 6
I 4 1/4 15.04        
I 1/2 4 1/2 15.27 .601 48 8 8
J 4 5/8 15.40        
  4 3/4 15.53        
J 1/2 5 15.70 .618 49 9 9
K 5 1/8 15.80        
  4 1/4 15.90        
K 1/2 5 3/8 16.00        
L 5 1/2 16.10 .634 50.5 10 10
  5 3/4 16.30        
L 7/8 5 7/8 16.41        
M 6 16.51 .650 52 12 12
M 1/2 6 1/4 16.71        
N 6 1/2 16.92 .666 53 13 13
N 1/2 6 3/4 17.13        
O 7 17.35 .683 54.5 14 14
O 1/2 7 1/4 17.45        
P 7 1/2 17.75 .699 55.5 15 15
P 1/2 7 3/4 17.97        
Q 8 18.19 .716 57 16 17
Q 1/2 8 1/4 18.35   58 17 18
  8 1/2 18.53 .732      
R 8 5/8 18.61        
  8 3/4 18.69        
R 1/2 8 7/8 18.80   59.5 18 19
  9 18.89 .748      
S 9 1/8 19.10        
  9 1/4 19.22        
S 1/2 9 3/8 19.31   61 20 21
  9 1/2 19.41 .764      
T 9 5/8 19.51        
  9 3/4 19.62        
T 1/2 10 19.84 .781 62 21 22
U 10 1/4 20.02        
U 1/2 10 1/2 20.20 .797 63.5 22 23
V 10 5/8 20.32        
  10 3/4 20.44        
V 1/2 11 20.68 .814 64.5 23 24
W 11 1/8 20.76        
  11 1/4 20.85        
W 1/2 11 3/8 20.94   66 25 26
  11 1/2 21.08        
X 11 5/8 21.18 .830      
  11 3/4 21.24        
X 1/2 11 7/8 21.30        
Y 12 21.49 .846 67.5 26 27
Y 1/2 12 1/4 21.69        
Z 12 1/2 21.89 .862 68.5 27 28
Z+1 13 22.2   70 28 30
Z+2 13 1/2 22.6   71 29 31
Z+3 14 23   72.5 31 32
Z+4 14 1/2 23.4   74 32 34
Z+5 15 23.9   75 33 35