Sizing
Ring size guide
Measure it properly once and you will not have to think about it again.
Three ways
Find your size
01
Measure a ring you already wear
Take a ring that fits the same finger. Measure straight across the inside edge to edge, in millimeters. Match that number to the inside diameter column below.
02
Measure the finger
Wrap a strip of paper or a piece of string around the base of the finger. Mark where it overlaps, lay it flat, and measure the length in millimeters. That is your inside circumference.
03
Come in
Sizing takes a minute on a proper mandrel and removes the guesswork entirely. It's the only way to be certain.
Before you measure
- Measure at the end of the day. Fingers are at their largest when warm.
- Cold hands read up to half a size small. Don't measure straight from outside.
- Wide bands sit tighter than thin ones. On a band over 6mm, go up a half size.
- Knuckles matter. The ring has to pass the knuckle but not spin at the base.
| US size | Inside diameter | Inside circumference |
|---|---|---|
| 3 | 14.1 mm | 44.2 mm |
| 3½ | 14.5 mm | 45.5 mm |
| 4 | 14.9 mm | 46.8 mm |
| 4½ | 15.3 mm | 48.0 mm |
| 5 | 15.7 mm | 49.3 mm |
| 5½ | 16.1 mm | 50.6 mm |
| 6 | 16.5 mm | 51.9 mm |
| 6½ | 16.9 mm | 53.1 mm |
| 7 | 17.3 mm | 54.4 mm |
| 7½ | 17.7 mm | 55.7 mm |
| 8 | 18.1 mm | 57.0 mm |
| 8½ | 18.5 mm | 58.3 mm |
| 9 | 18.9 mm | 59.5 mm |
| 9½ | 19.4 mm | 60.8 mm |
| 10 | 19.8 mm | 62.1 mm |
| 10½ | 20.2 mm | 63.4 mm |
| 11 | 20.6 mm | 64.6 mm |
| 11½ | 21.0 mm | 65.9 mm |
| 12 | 21.4 mm | 67.2 mm |
| 12½ | 21.8 mm | 68.5 mm |
| 13 | 22.2 mm | 69.7 mm |
Between two sizes, or buying as a surprise? Ask us. We do this every day.
Buying a surprise
We have done this before.
There are ways to get it right without asking.
Talk to a specialist