Size Guide
How to find your ring size
Determining your ring size doesn't have to be complicated. Based on our experience, we recommend two simple methods that have proven successful for our customers:
1. Do you already have a matching ring?
Very good! The size is often engraved directly on the ring or stated on the invoice (e.g., size 52 or 6.5). If you're unsure, you can measure the inner diameter or take a photo next to a ruler and send it to us – we'll be happy to help.
2. You don't have a ring handy?
Then measure the circumference of your finger:
- Use a cable that isn't too soft (e.g. your phone charger cable - thread or paper are usually inaccurate).
- Place it loosely but tightly around your finger.
- Mark the point where the ends meet.
- Measure the distance between the marks with a ruler.
- Send us the measurement or use our conversion table.
Important instructions:
Measure your size at the end of the day at normal temperature. Your fingers can vary depending on the season—they're often a bit thicker in summer.
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Finger circumference (in) | Finger circumference (mm) | HK/Vietnam | USA/Canada | UK/Australia | Japan/China/South America | France/Germany (Cartier) | Italy/Spain |
---|---|---|---|---|---|---|---|
1.89 | 47.9 | 10 | 4½ | I | 8 | 48 | 8 |
1.94 | 49.3 | 11 | 5 | J | 9 | 49 | 9 |
1.99 | 50.6 | 12 | 5½ | K | 10 | 50 | 10.5 |
2.04 | 51.8 | 13 | 6 | L | 11 | 51 | 11.75 |
2.09 | 53.1 | 14 | 6½ | L½ | 12 | 52 | 13 |
2.14 | 54.5 | 15 | 7 | M | 13 | 53 | 14.5 |
2.19 | 55.7 | 16 | 7½ | N | 14 | 54 | 15.75 |
2.25 | 57.1 | 17 | 8 | O | 15 | 55 | 17 |
2.29 | 58.2 | 18 | 8½ | P | 16 | 56 | 18 |
2.34 | 59.3 | 19 | 9 | Q | 17 | 57 | 19.5 |
2.4 | 60.9 | 21 | 9½ | R | 18 | 58 | 20.75 |
2.45 | 62.3 | 22 | 10 | S | 19 | 59 | 22 |
2.5 | 63.4 | 23 | 10½ | T | 20 | 60 | 23 |