Do you already own a ring of the same size you would like to purchase?

If yes, just take a ruler and measure straight across the inside of the ring from inside edge to edge. Take the diameter measurement in inches or mm, and then use our measurement-conversion chart to find your ring size.

If no, please scroll down to the 2nd table.

INSIDE DIAMETER

RING SIZE

inches
MM
UK
US
EU
0.52 12.84 D 2.25 41
0.53 13.57 E 2.75 42
0.55 13.97 F 3.25 44
0.56 14.38 G 3.75 45
0.58 14.88 H 4.25 46.5
0.59 15.1 I 4.5 47
0.6 15.49 J 5 48.5
0.62 15.9 K 5.5 50
0.64 16.31 L 6 51
0.65 16.71 M 6.5 52
0.67 17.12 N 6.75 53.5
0.69 17.53 O 7 55
0.7 17.93 P 7.5 56
0.72 18.34 Q 8 57
0.73 18.75 R 8.5 58.5
0.75 19.15 S 9 59.5
0.77 19.56 T 9.5 61
0.78 19.81 U 10 62.5
0.79 20.17 V 10.5 62.5
0.81 20.61 W 11 65
0.83 20.99 X 11.5 66
0.84 21.32 Y 12 67.5
0.85 21.71 Z 12.5 69
0.87 22.1 Z+ 13 70.5



How to determine your size if you don't have a ring of the same size:

  1. Take a piece of string, piece of paper (no wider than 1.4cm or ½ inch), as this will help you to be accurate.

  2. Wrap it around the base of the finger you would like to measure.

  3. Use a pen to mark the point on the string or paper where it overlaps. The overlap will form a complete circle.

  4. Take a ruler and measure the length of the string or paper from the starting end, to the end you marked with the pen.

  5. Finally, use this measurement and compare it against the chart below to determine your ring size.

INSIDE CIRCUMFERENCE

RING SIZE

inches
mm
UK
US
EU
1.63 41.5 D 2.25 41
1.68 42.76 E 2.75 42
1.74 44.14 F 3.25 44
1.77 45.11 G 3.75 45
1.81 46.02 H 4.25 46.5
1.86 47.25 I 4.5 47
1.9 48.38 J 5 48.5
1.95 49.64 K 5.5 50
1.99 50.58 L 6 51
2.04 51.87 M 6.5 52
2.09 53.16 N 6.75 53.5
2.15 54.51 O 7 55
2.2 55.76 P 7.5 56
2.25 57.15 Q 8 57
2.3 58.47 R 8.5 58.5
2.36 60 S 9 59.5
2.41 61.29 T 9.5 61
2.48 62.89 U 10 62.5
2.51 63.84 V 10.5 62.5
2.57 65.22 W 11 65
2.62 66.54 X 11.5 66
2.66 67.51 Y 12 67.5
2.71 68.77 Z 12.5 69
2.73 69.43 Z+ 13 70.5

   

Top tips for measuring your ring size:

  • Avoid measuring for a ring when you’re cold, as your fingers will be half a size smaller.

  • Make sure you can comfortably slide the string or paper over your finger joints/knuckles.

  • Measure your finger 3 or 4 times to make sure you’re getting a correct reading.

  • Use a few different pieces of paper or string too - these materials can twist or stretch so it’s best to take a few readings.

  • Rings with wider bands will fit a bit tighter, so you may need to go up a size.


Please note that this is a guide only and that measurements may vary according to brand and style. Check the sizing section on the product page for specific sizing information.

If you would like any help in choosing a size please do not hesitate to contact us on +44 (0)20 7229 4848 (UK), +1 (646) 934-6601 (US) or email [email protected]