Measure an existing ring
Choose a ring that fits the intended finger. Measure across the inside at its widest point, without including the metal edges, and compare the internal diameter.
Ring Sizer
Find your fit
A ring that feels right.
Use your chosen product's size options and a ring that already fits as a starting point.
Check before ordering
Finger size can vary with temperature and time of day. Wider bands and stacked rings can feel different; ask us for help if you are unsure.
Size reference
The table below retains our existing size reference. Conversions are approximate; confirm the measurements for your selected design before ordering.
| Internal Diameter | UK | US | EU | China |
| 14.5mm | G | 3.75 | 45 | 6 |
| 14.8mm | H | 4.25 | 46.5 | 7 |
| 15.2mm | I | 4.5 | 47.5 | 8 |
| 15.6mm | J | 5 | 48.5 | 9 |
| 16.0mm | K | 5.5 | 50 | 10 |
| 16.4mm | L | 6 | 51 | 11 |
| 16.8mm | M | 6.5 | 52.5 | 12 |
| 17.2mm | N | 6.75 | 53.5 | 13 |
| 17.4mm | O | 7 | 55 | 14 |
| 18.0 mm | P | 7.5 | 56 | 15 |
| 18.4mm | Q | 8 | 57.5 | 16 |
| 19.0mm | R | 8.5 | 59 | 17 |
| 19.2mm | S | 9 | 60.25 | 18 |
| 19.5mm | T | 9.5 | 62.75 | 19 |
| 20.0mm | U | 10 | 63 | 20 |
| 20.3mm | V | 10.5 | 64 | 21 |
| 20.7mm | W | 11 | 65 | 22 |
| 21.1mm | X | 11.5 | 66.5 | 23 |
| 21.4mm | Y | 12 | 67.5 | 24 |
| 21.8mm | Z | 12.5 | 69 | 25 |