home
Home | Shopping Basket (0) | Order Status | Customer Service | Testimonials
Made In USA

Free Shipping, Free Ring Sizing & 30 Day Returns
Shop By Product Diamonds Engagement Jewelry Gifts Education Wedding Rings
Navigation Line
Navigation Line
Navigation Line
Navigation Line
Navigation Line
Navigation Line
Navigation Line
 
 

International Ring Size Conversion Chart

>
US Size
Diameter in Inches
Diameter in MM
Metric -MM
British
French
German
Japanese
Swiss
0000
.390
9.91
 
-
       
00
.422
10.72
 
-
       
0
.454
11.53
 
-
       
1/2
.474
11.95
 
A
       
3/4
.482
12.18
 
A 1/2
       
1
.487
12.37
38.9
B
   
1
 
1 1/4
-
12.60
39.6
B 1/2
       
1 1/2
.503
12.78
40.2
C
       
1 3/4
-
13.00
40.8
C 1/2
       
2
.520
13.21
41.5
D
41 1/2
13 1/2
2
1 1/2
2 1/4
-
13.41
42.1
D 1/2
-
-
   
2 1/2
.536
13.61
42.7
E
42 3/4
13 3/4
3
2 3/4
2 3/4
-
13.83
43.4
E 1/2
-
-
   
3
.553
14.05
44.0
F
44
14
4
4
3 1/8
-
14.15
44.3
F 1/2
-
-
   
3 1/4
-
14.25
44.6
-
-
-
   
3 3/8
-
14.36
44.9
G
45 1/4
-
5
5 1/4
3 1/2
.569
14.45
45.2
-
-
14 1/2
   
3 5/8
-
14.56
45.6
 G 1/2
-
 
6
 
3 3/4
-
14.65
45.9
H
46 1/2
   
6 1/2
4
.585
14.86
46.5
H 1/2
-
15
7
 
4 1/4
-
15.04
47.1
47 3/4
   
7 3/4
4 1/2
.601
15.27
47.8
I 1/2
-
15 1/4
8
 
4 5/8
-
15.40
48.1
J
49
15 1/2
 
9
4 3/4
-
15.53
48.4
-
-
     
5
.618
15.70
49.0
J 1/2
-
15 3/4
9
 
5 1/8
-
15.80
49.3
K
50
   
10
5 1/4
-
15.90
49.6
-
-
     
5 3/8
-
16.0
50.0
K 1/2
-
 
10
 
5 1/2
.634
16.10
50.3
L
51 3/4
16
 
11 3/4
5 3/4
-
16.30
50.9
-
-
     
5 7/8
-
16.41
51.3
L 1/2
-
     
6
.650
16.51
51.5
M
52 3/4
16 1/2
12
12 3/4
6 1/4
-
16.71
52.2
M 1/2
-
     
6 1/2
.666
16.92
52.8
N
54
17
13
14
6 3/4
-
17.13
53.4
N 1/2
-
     
7
.683
17.35
54.0
O
55 1/4
17 1/4
14
15 1/4
7 1/4
-
17.45
54.7
O 1/2
-
     
7 1/2
.699
17.75
55.3
P
56 1/2
17 3/4
15
16 1/2
7 3/4
-
17.97
55.9
P 1/2
-
     
8
.716
18.19
56.6
Q
57 3/4
18
16
17 3/4
8 1/4
-
18.35
57.2
Q 1/2
-
     
8 1/2
.732
18.53
57.8
-
-
18 1/2
17
 
8 5/8
-
18.61
58.4
R
59
   
19
8 3/4
-
18.69
58.4
-
-
     
8 7/8
-
18.80
59.0
R 1/2
-
     
9
.748
18.89
59.1
-
-
19
18
 
9 1/8
-
19.10
59.4
S
60 1/4
   
20 1/4
9 1/4
-
19.22
59.7
-
-
     
9 3/8
-
19.31
60.0
S 1/2
-
     
9 1/2
.764
19.41
60.3
-
-
19 1/2
19
 
9 5/8
-
19.51
60.6
T
61 1/2
   
21 1/2
9 3/4
-
19.62
60.9
-
-
     
10
.781
19.84
61.6
T 1/2
-
20
20
 
10 1/4
-
20.02
62.2
U
62 3/4
 
21
22 3/4
10 1/2
.797
20.20
62.8
U 1/2
-
20 1/4
22
 
10 5/8
-
20.32
63.1
V
63
   
23 3/4
10 3/4
-
20.44
63.5
-
-
     
11
.814
20.68
64.1
V 1/2
-
20 3/4
23
 
11 1/8
-
20.76
64.3
W
65
   
25
11 1/4
-
20.85
64.7
-
-
     
11 3/8
-
20.94
65.0
W 1/2
-
     
11 1/2
-
21.08
65.3
-
-
21
24
 
11 5/8
.830
21.18
65.7
X
66 1/4
   
26 1/4
11 3/4
-
21.24
66.0
-
-
     
11 7/8
-
21.30
66.3
X 1/2
-
     
12
.846
21.49
66.6
Y
67 1/2
21 1/4
25
27 1/2
12 1/4
-
21.69
67.2
Y 1/2
-
     
12 1/2
.862
21.89
67.9
Z
68 3/4
21 3/4
26
28 3/4
12 3/4
-
22.10
68.5
Z 1/2
-
     
13
.879
22.33
69.1
-
-
22
27
 
Education and Guidance
View our education section for helpful information on more than just the 4 Cs.
Lines
Right Arrow Cut Right Arrow Clarity
Right Arrow Color Right Arrow Carat Weight
Right Arrow GIA    
Right ArrowMore

Custom Special Order
Right ArrowSpecial Order Engagement
Rings
Image of Ring and Drawing

Your options are limitless.  Phone a Diamond and Jewelry Consultant to create the ring or jewelry of your dreams.
Lines
Right Arrow Special Order Diamonds
Lines
Right Arrow One-of-a-Kind Gifts
  1-866-239-4315
Lines


Right Arrow Customers Say it best!
Read what customers have to say about their MDC Diamonds shopping experience.
 
...
 
Chris P.
Plainville, CT
February 28, 2014

More
Top
 
Line
MDC Diamonds NYC is an Upfront Merchant on TheFind. Click for info.   Find Mdcdiamonds.com Coupons on BeFrugal.comSSL CerficateMDC Diamonds International Inc is a BBB Accredited Business. Click for the BBB Business Review of this Jewelers - Retail in New York NY
Line
Русский | Español | 한국의 | New York
Line
Customer Service Address: 580 Fifth Avenue Suite 349, New York, NY 10036
Corporate Address: Manhattan, New York, NY
We welcome visitors to our New York office. Office visits are by appointment only. Please contact our Customer Service center to schedule an appointment.
© 2014 MDC Diamonds NYC - All Rights Reserved.