Ring Size Chart
| Circumference (mm) | Diameter (mm) | Europe | North America | Foi Ring | Nonna Ring | Tofu Ring | Pope Ring | Go-go / Nonna Pearl Ring |
| 47 | 14.00 | 44 | 2.5 | |||||
| 48 | 14.33 | 45 | 3.0 | |||||
| 49 | 14.66 | 46 | 3.5 | S | ||||
| 50 | 15.00 | 47 | 4.0 | XXS | XXS | S | ||
| 51 | 15.33 | 48 | 4.5 | XXS | XXS | S | ||
| 52 | 15.66 | 49 | 5.0 | XS | XS | S | ||
| 53 | 16.00 | 50 | 5.5 | XS | XS | S | S | |
| 54 | 16.33 | 51 | 6.0 | S | S | S | S | |
| 55 | 16.66 | 52 | 6.0 | S | S | S | S | S |
| 56 | 17.00 | 53 | 6.5 | M | M | S | M | M |
| 57 | 17.33 | 54 | 7.0 | M | M | S | M | M |
| 58 | 17.66 | 55 | 7.0 | L | L | M | M | M |
| 59 | 18.00 | 56 | 7.5 | L | L | M | M | |
| 60 | 18.33 | 57 | 8.0 | XL | XL | M | M | |
| 61 | 18.66 | 58 | 8.5 | XL | XL | M | ||
| 62 | 19.00 | 59 | 9.0 |