Find Your Ring Size
| Our Size (CN) | Internal Diameter / Circumference (mm) |
US | UK / AU | France |
| CN-9 | 15.2 / 47.7 | 4 | H 1/2 | 47 |
| CN-10 | 15.5 / 48.7 | 4 1/2 | I 1/2 | 48 |
| CN-11 | 15.9 / 49.9 | 5 | J 1/2 | 49.5 |
| CN-12 | 16.3 / 51.2 | 5 1/2 | L | 50.5 |
| CN-13 | 16.6 / 52.1 | 6 | M | 52 |
| CN-14 | 16.9 / 53.1 | 6 1/2 | N | 53 |
| CN-15 | 17.3 / 54.3 | 7 | O | 54.5 |
| CN-16 | 17.7 / 55.6 | 7 1/2 | P | |
| CN-17 | 18.0 / 56.6 | 7 3/4 | Q | 56 |
| CN-18 | 18.3 / 57.5 | 8 | 57 | |
| CN-19 | 18.7 / 58.7 | 8 1/2 | R | 58.5 |
| CN-20 | 19.0 / 59.7 | 9 | S | 59.5 |
How To Measure
The Hands-on Method
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Grab a tape measure, length of string or strip of paper.
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Wrap it around the finger you’ll wear your ring on—if you’re creating a ring stack, consider where on your finger the ring will sit—and mark the place where it joins.
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Lay your string or paper strip on a flat surface and use a ruler to measure the length up to the mark. Use the chart to match the measurement to the closest ring size.
Measure an Existing Ring
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Choose a ring that already fits your finger well.
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Measure the interior diameter of the ring in millimeters (mm).
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Use the measurement chart to match the size of your ring to the closest size in mm.