Guida Misure
| Diametro Interno Anello (mm) | Circonferenza Interna Anello | Misura USA | Misura Officina Preziosità |
|---|---|---|---|
| 14,65 | 46 | 3 ¾ | 6 |
| 14,97 | 47 | 4 | 7 |
| 15,29 | 48 | 4 ½ | 8 |
| 15,61 | 49 | 4 ¾ | 9 |
| 15,92 | 50 | 5 ¼ | 10 |
| 16,24 | 51 | 5 ¾ | 11 |
| 16,56 | 52 | 6 | 12 |
| 16,88 | 53 | 6 ¼ | 13 |
| 17,2 | 54 | 6 ¾ | 14 |
| 17,52 | 55 | 7 ¼ | 15 |
| 17,83 | 56 | 7 ½ | 16 |
| 18,15 | 57 | 8 | 17 |
| 18,47 | 58 | 8 ¼ | 18 |
| 18,79 | 59 | 8 ¾ | 19 |
| 19,11 | 60 | 9 | 20 |
| 19,43 | 61 | 9 ½ | 21 |
| 19,74 | 62 | 10 | 22 |
| 20,06 | 63 | 10 ¼ | 23 |