Ring Sizing Guide

Find your size by measuring either a string you've wrapped around your finger or by using a ring that fits. Then, use the ring size chart below to find your size.

Measure Your Finger

Take a piece of non-stretchable string, ribbon, thread, or a thin strip of paper. Wrap it comfortably around your ring finger, close to the knuckle.

With a pen, carefully mark the spot where the string overlaps. For accuracy, make the marks small.

Unwrap your marked length. With a ruler, measure it in millimeters. Find your measurement below.

Size Comparison Chart

Standard (US) Size	Internal Diameter	European Size
3	14.0 mm	-
3.5	14.4 mm	46
4	14.8 mm	47
4.5	15.2 mm	48
5	15.6 mm	50
5.5	16.0 mm	51
6	16.45 mm	52
6.5	16.9 mm	53
7	17.3 mm	54
7.5	17.7 mm	56
8	18.2 mm	57
8.5	18.6 mm	58
9	19.0 mm	60
9.5	19.4 mm	61
10	19.8 mm	62
10.5	20.2 mm	64
11	20.6 mm	65
11.5	21.0 mm	66
12	21.4 mm	67
12.5	21.8 mm	69
13	22.2 mm	70
13.5	22.6 mm	71

Marquise-Cut White Lab-Created Sapphire Halo Ring Sterling Silver

KAY At Your Service

KAY At Your Service

Marquise-Cut White Lab-Created Sapphire Halo Ring Sterling Silver

KAY At Your Service

KAY At Your Service

Size Guide

Ring Sizing Guide

Measure Your Finger

Size Comparison Chart

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