Ring Size Guide

You’ve found your soul mate and that all-important ring, but what size do you opt for? Unfortunately, there is no one size fits all approach, after all each ring is as unique as the individual wearing it, but there are a few simple ways to get the best possible fit

Starfire Diamond Jewellery has a myriad of styles in a range of finger sizes in stock, with M being the most popular ladies ring size and U being the most popular men's ring size. With this in mind, even if your choice doesn’t fit your partner's ring finger, it will more than likely fit another at that truly special moment.

The most important thing to remember is not to panic if you pick the wrong size. Our classic solitaire styles can be adjusted to be made larger or smaller so there’s no need to worry. We offer the first sizing free of charge.

Fancier style rings with diamond shoulders or halos are a little different and may be unsuitable for resizing, but do not fret – you have 14-days to return the ring and we will exchange it for the perfect size.

 

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Diameter Inside Circumference US & CAUnited States & Canada EUEurope UK & AUUK & Australia SG & JPSingapore & Japan HKHong Kong CHSwitzerland
14.1 mm 44.3 mm 3 44 F 1/2 4 6 4
14.3 mm 44.9 mm 45 G 5 5 1/4
14.5 mm 45.6 mm 3.5 G 1/2 7
14.7 mm 46.2 mm 46 H 6 6 1/2
14.9 mm 46.8 mm 4 47 H 1/2 7 8
15.1 mm 47.4 mm I 7 3/4
15.3 mm 48.1 mm 4.5 48 I 1/2 8 9
15.5 mm 48.7 mm J 10 9
15.7 mm 49.3 mm 5 49 J 1/2 9
15.9 mm 50.0 mm 50 K 11 10
16.1 mm 50.6 mm 5.5 K 1/2 10
16.3 mm 51.2 mm 51 L 12 11 3/4
16.5 mm 51.8 mm 6 52 L 1/2 11 13 12 3/4
16.7 mm 52.5 mm M 12
16.9 mm 53.1 mm 6.5 53 M 1/2 13 14 14
17.1 mm 53.7 mm N
17.3 mm 54.3 mm 7 54 N 1/2 14 15 15 1/4
17.5 mm 55.0 mm 55 O 16
17.7 mm 55.6 mm 7.5 O 1/2 15 16 1/2
17.9 mm 56.2 mm 56 P 17
18.1 mm 56.9 mm 8 57 P 1/2 15 17 3/4
18.2 mm 57.2 mm 18
18.3 mm 57.5 mm Q
18.5 mm 58.1 mm 8.5 58 Q 1/2 17
18.8 mm 59.1 mm 59 R 19 19
19.0 mm 59.7 mm 9 R 1/2 18 20
19.2 mm 60.3 mm 60 S 20 1/4
19.4 mm 60.9 mm 9.5 61 S 1/2 19 21
19.6 mm 61.6 mm T 21 1/2
19.8 mm 62.2 mm 10 62 T 1/2 20 22
20.0 mm 62.8 mm U 21
20.2 mm 63.5 mm 10.5 63 U 1/2 22 23 22 3/4
20.4 mm 64.1 mm 64 V 24
20.6 mm 64.7 mm 11 V 1/2 23
20.8 mm 65.3 mm 65 W 25 25
21.0 mm 66.0 mm 11.5 66 W 1/2 24
21.2 mm 66.6 mm X 26
21.4 mm 67.2 mm 12 67 X 1/2 25 27 27 1/2
21.6 mm 67.9 mm Y
21.8 mm 68.5 mm 12.5 68 Z 26 28 3/4
22.0 mm 69.1 mm 69 Z 1/2
22.2 mm 69.7 mm 13 70 27
22.4 mm 70.4 mm Z+1
22.6 mm 71.0 mm 13.5 Z+2