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Note: to ensure that you get an accurate ring size from this guide, please read the following instructions carefully. The best way to get the most accurate size is to have a jeweler size your finger; this is free of cost at all of our retail locations.
Tips to ensure an accurate measurement:
• Avoid measuring cold fingers; as cold fingers are smaller than warm fingers.
• Measure your finger in warm temperatures at the end of the day; this will be when your finger is at its largest.
• If your knuckle is much larger than the base of your finger, make sure and measure both the base of your finger as well as your knuckle and select a size between the two to allow enough room to comfortably slip over your knuckle.
• For a wider band (larger than 6mm), select one size larger than what your actual ring size is, wider bands take up more space on the finger.
Ring Sizing
1. Wrap a piece of string or a strip of paper around the base of your finger (no wider than 3/4” and non-stretchy material).
2. Mark the point where the two ends meet.
3. Measure the string or paper against a ruler.
4. Compare the length to the chart below.
Perimeter (mm) |
Diameter (mm) |
USA Size |
UK Size |
Germany Size |
Swiss Size |
Japan Size |
---|---|---|---|---|---|---|
48 | 15.27 | 4.5 | I 1/2 | 15 1/4 | - | 8 |
49 | 15.70 | 5 | J 1/2 | 15 3/4 | - | 9 |
51 | 16.10 | 5.5 | L | 16 | 11 3/4 | 11 |
52 | 16.51 | 6 | M | 16 1/2 | 12 3/4 | 12 |
53 | 16.92 | 6.5 | N | 17 | 14 | 13 |
55 | 17.35 | 7.5 | O | 17 1/4 | 15 1/4 | 14 |
56 | 17.75 | 7.5 | P | 17 3/4 | 16 1/2 | 15 |
57 | 18.19 | 8 | Q | 18 | 17 3/4 | 16 |
58 | 18.53 | 8.5 | Q 1/2 | 18 1/2 | - | 17 |
59 | 18.89 | 9 | R 1/2 | 19 | - | 18 |
61 | 19.41 | 9.5 | S 1/2 | 19 1/2 | - | 19 |
62 | 19.84 | 10 | T 1/2 | 20 | - | 20 |
63 | 20.20 | 10.5 | U 1/2 | 20 1/4 | - | 22 |
65 | 20.68 | 11 | V 1/2 | 20 3/4 | - | 23 |
66 | 21.08 | 11.5 | W 1/2 | 21 | - | 24 |
68 | 21.49 | 12 | Y | 21 1/4 | 27 1/2 | 25 |
69 | 21.89 | 12.5 | Z | 21 3/4 | 28 3/4 | 26 |
70 | 22.33 | 13 | - | 22 | - | 27 |