UK Ring Size Guide
Find your ring size
Our numbered ring options use US sizes. The chart below gives approximate UK letter equivalents and inside measurements. Choose the US number shown on the product; the UK letter is a comparison guide.
| Product / US size | Approx. UK size | Inside diameter (mm) | Inside circumference (mm) |
|---|---|---|---|
| 5 | J½ | 15.7 | 49.3 |
| 6 | M | 16.5 | 51.9 |
| 7 | O | 17.3 | 54.4 |
| 8 | Q | 18.1 | 56.9 |
| 9 | S | 18.9 | 59.5 |
| 10 | T½ | 19.8 | 62.1 |
| 11 | V½ | 20.6 | 64.6 |
| 12 | Y | 21.4 | 67.2 |
Measure a ring you already wear
Choose a ring that fits the intended finger comfortably. Measure straight across its inside, excluding the metal band, in millimetres. Compare that inside diameter with the chart.
Measure your finger
A jeweller's ring sizer gives a more reliable fit than a screen or phone measurement. If measuring at home, use a flexible non-stretch tape and check at a comfortable temperature. Make sure the size will pass over your knuckle. Wide bands may feel tighter than narrow bands.
Conversions are approximate, and available sizes depend on the product. If you are between sizes or buying a wide band, email info@emiliaz.com with the product name and your measurements before ordering. See the individual listing for adjustable-ring ranges, bracelet lengths and necklace lengths.
For a different size after purchase, see our UK returns policy. We do not offer direct voluntary exchanges; eligible purchases can be returned and a new order placed.