Ring Size Information & International Ring Size Conversion

In light of our growing international sales, we are pleased to include an easy ring size conversion chart for your use below.

We highly recommend that you either measure the inner diameter of a current ring, or visit a local jeweler for an accurate ring size measurement *before* placing your order. 

This will ensure the ring arrives ready to wear or gift without requiring additional work.  We request that orders are placed using the US ring size.

Ring size FAQ.

 

BetterThanDiamond.com International Ring Size Chart:

Inner Diameter  (mm)		US and Canada Ring Size	Australia, UK, Ireland	Japan, China
11.63		0
11.84		.25
12.04		.50	A
12.24		.75	A 1/2
12.45		1.0	B	1
12.65		1.25	B 1/2
12.85		1.50	C
13.06		1.75	C 1/2
13.26		2.00	D	2
13.46		2.25	D 1/2
13.67		2.50	E	3
13.87		2.75	E 1/2
14.07		3.00	F	4
14.27		3.25	F 1/2	5
14.48		3.50	G
14.68		3.75	G 1/2	6
14.88		4.00	H	7
15.00		4.25	H 1/2
15.29		4.50	I	8
15.49		4.75	J
15.70		5.00	J 1/2	9
15.90		5.25	K
16.10		5.50	K 1/2	10
16.31		5.75	L
16.51		6.00	L 1/2	11
16.71		6.25	M	12
16.92		6.50	M 1/2	13
17.12		6.75	N
17.32		7.00	N 1/2	14
17.53		7.25	O
17.73		7.50	O 1/2	15
17.93		7.75	P
18.14		8.00	P 1/2	16
18.34		8.25	Q
18.54		8.50	Q 1/2	17
18.75		8.75	R
18.95		9.00	R 1/2	18
19.15		9.25	S
19.35		9.50	S 1/2	19
19.56		9.75	T
19.76		10.00	T 1/2	20
19.96		10.25	U	21
20.17		10.50	U 1/2	22
20.37		10.75	V
20.57		11.00	V 1/2	23
20.78		11.25	W
20.98		11.50	W 1/2	24
21.18		11.75	X
21.39		12.00	X 1/2	25
21.59		12.25	Y
21.79		12.50	Z	26
22.00		12.75	Z 1/2
22.20		13.00		27
22.40		13.25	Z1
22.61		13.50
22.81		13.75	Z2
23.01		14.00	Z3
23.22		14.25
23.42		14.50	Z4
23.62		14.75
23.83		15.00
24.03		15.25
24.23		15.50
24.43		15.75
24.64		16.00

We can size most of our rings from as small as 3.25, to as large as 10 for women's rings.  A few are limited to a smaller range of sizes, and others can be sized larger than a 10 by special order.

Please note that additional sizing charges of $50 per size over size 8 will apply (as we have to add additional metal...thus for a size 10, there will be an extra $100 charge). 

Already have a ring that fits, but don't know what size it is?  Try this online tool to help determine your ring's current size.

If you have any other question regarding our ring sizing, please feel free to email us.