Ring size guide
If you have any questions, please feel free to email me, I will be happy to help.
- Choose one of your rings as a reference, it must correspond to the desired finger.
- Use a ruler to measure the ø inner diameter of the ring in millimeters, taking the distance from one inner edge to the other inner edge.
- Consult our measurement matching chart to find the corresponding ring size.
- Do you still have any doubts? Order a Fontennoy ring sizer.
| Size | ømm | US | US | UK |
| * | 14.6 | 46 | 3.75 | H |
| * | 15.2 | 48 | 4.5 | I.J. |
| * | 15.9 | 50 | 5.5 | K |
| S | 16.5 | 52 | 6.5 | L |
| * | 17.2 | 54 | 7.5 | NOT |
| * | 17.8 | 56 | 8.5 | P |
| M | 18.0 | 58 | 9.5 | Q |
| L | 19.0 | 60 | 10.5 | R |
| * | 19.7 | 62 | 11.5 | S |
| * | 20.4 | 64 | 12.5 | T |
* = on order