All Blanchet & Co. rings are available in US sizes 2–14. If you're unsure of your size, here's how to find it.
How to Measure at Home
- Wrap a strip of paper or string around the base of the finger you'll wear the ring on.
- Mark where it overlaps itself, then measure the length in millimeters.
- That number is your finger's circumference — match it to the closest value in the chart below.
Ring Size Chart
| US Size | Inner Diameter | Circumference |
|---|---|---|
| 2 | 13.3mm | 41.6mm |
| 3 | 14.1mm | 44.2mm |
| 4 | 14.9mm | 46.8mm |
| 5 | 15.7mm | 49.3mm |
| 6 | 16.5mm | 51.9mm |
| 7 | 17.3mm | 54.4mm |
| 8 | 18.1mm | 57.0mm |
| 9 | 18.9mm | 59.5mm |
| 10 | 19.8mm | 62.1mm |
| 11 | 20.6mm | 64.6mm |
| 12 | 21.4mm | 67.2mm |
| 13 | 22.2mm | 69.7mm |
| 14 | 23.0mm | 72.3mm |
Between sizes, or sizing for a partner without them knowing? We recommend sizing up slightly — every ring includes one complimentary professional resizing within 60 days of purchase.