What Is My Ring Size?

Not sure of your ring size? This comprehensive International Size Chart provides accurate measurement standards for a host of countries to help you determine your ring size for that special purchase!

We provide both British and Australian alphabetic sizes as well as the millimeter diameter of our rings to the best of our ability!

For a resizing, we recommend consulting your own jeweller who will complete a professional ring fitting to ensure best results before any adjustments are made.

If you have any questions before making your purchase, please do not hesitate to contact us.

International Ring Size Conversion Chart

Circumference (mm) Europe / ISO	Diameter (mm)	USA / Canada	UK / Australia	Asia	Switzerland
44.2	14.1	3	F	4	4
44.8	14.3		F-1/2	5	5-1/4
45.5	14.5	3-1/2	G
46.1	14.7		G-1/2	6	6-1/2
46.8	14.9	4	H	7
47.4	15.1		H-1/2		7-3/4
48.0	15.3	4-1/2	I	8
48.7	15.5		J		9
49.3	15.7	5	J-1/2	9
50.0	15.9		K		10
50.6	16.1	5-1/2	K-1/2	10
51.2	16.3		L		11-3/4
51.9	16.5	6	L-1/2	11	12-3/4
52.5	16.7		M	12
53.1	16.9	6-1/2	M-1/2	13	14
53.8	17.1		N
54.4	17.3	7	N-1/2	14	15-1/4
55.1	17.5		O
55.7	17.7	7-1/2	O-1/2	15	16-1/2
56.3	17.9		P
57.0	18.1	8	P-1/2	16	17-3/4
57.6	18.3		Q
58.3	18.5	8-1/2	Q-1/2	17
58.9	18.8		R		19
59.5	19.0	9	R-1/2	18
60.2	19.2		S		20-1/4
60.8	19.4	9-1/2	S-1/2	19
61.4	19.6		T		21-1/2
62.1	19.8	10	T-1/2	20
62.7	20.0		U	21
63.4	20.2	10-1/2	U-1/2	22	22-3/4
64.0	20.4		V
64.6	20.6	11	V-1/2	23
65.3	20.8		W		25
65.9	21.0	11-1/2	W-1/2	24
66.6	21.2		X
67.2	21.4	12	X-1/2	25	27-1/2
67.8	21.6		Y
68.5	21.8	12-1/2	Z	26	28-3/4
69.1	22.0		Z-1/2
69.7	22.2	13		27
70.4	22.4		Z + 1
71.0	22.6	13-1/2

Do you have your eye on something special?

Contact Us

Graisons Fine Jewellery are located in Tasmania, operating exclusively online via their website.

Please include details of the item you wish to discuss.

Please check your junk folder if you are waiting to hear from us, we respond to messages and emails between the hours of 9am - 9pm (AEST) 7 days a week.

Domestic & International delivery

Enjoy complimentary free express postage fully insured with signature on delivery.

Luxury Packaging

All purchases are packaged in our signature Graisons Fine Jewellery jewel boxes.

Payment in 4x

Afterpay available from purchases priced between $400 - $2000 AUD.

Layby Available

Take advantage of our generous layby plans for pieces priced $400 AUD and above.