Ring size guide
For a bespoke engagement ring, we always confirm the size with you before making it.
Method 1: with a ring you own
- Pick a ring worn on the same finger.
- Measure its inner diameter, edge to edge, in millimetres.
- Find the measurement in the table below.
Method 2: with a strip of paper or string
- Wrap it around the base of the finger, without squeezing.
- Mark where it meets, then measure the length in millimetres: that is your circumference.
- Make sure the ring will pass over the knuckle.
Measure at the end of the day, when fingers are slightly larger, and avoid measuring in the cold. Between two sizes, choose the larger one.
| Canada / US | France (EU) | Circumference | Inner diameter |
|---|---|---|---|
| 4 | 47 | 46.8 mm | 14.9 mm |
| 4.5 | 48 | 48.0 mm | 15.3 mm |
| 5 | 49 | 49.3 mm | 15.7 mm |
| 5.5 | 51 | 50.6 mm | 16.1 mm |
| 6 | 52 | 51.9 mm | 16.5 mm |
| 6.5 | 53 | 53.1 mm | 16.9 mm |
| 7 | 54 | 54.4 mm | 17.3 mm |
| 7.5 | 56 | 55.7 mm | 17.7 mm |
| 8 | 57 | 57.0 mm | 18.1 mm |
| 8.5 | 58 | 58.3 mm | 18.5 mm |
| 9 | 60 | 59.5 mm | 19.0 mm |
| 9.5 | 61 | 60.8 mm | 19.4 mm |
| 10 | 62 | 62.1 mm | 19.8 mm |
Client service
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Our client advisors are happy to help with any request.
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Maison OmeroMontréal (Québec) H2Y 1W8, Canada
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