Ring Size Guide

Finding the perfect ring fit is essential for comfort and confidence. Whether you're shopping for yourself or selecting a gift, understanding ring sizing ensures your piece will be worn and treasured for years to come.

How to Measure Your Ring Size

The most accurate way to determine your ring size is to visit a jeweller who can measure your finger professionally. However, if you prefer to measure at home, you have several options:

  • Use an existing ring: Place a ring that fits comfortably on the correct finger and measure its inner diameter in millimetres. Compare this measurement to a ring size chart.
  • Wrap a string or paper: Wrap a piece of string or paper around the base of your finger where you plan to wear the ring. Mark where it overlaps, then measure the length in millimetres and convert to a ring size.
  • Printable ring sizer: Download and print a ring sizing chart from a jeweller's website. Follow the instructions to find your size accurately.

Ring Size Variations by Region

Ring sizes differ across countries. Common sizing systems include:

  • US/Canada: Numbered 0–13, with half sizes available
  • UK/Australia: Lettered A–Z
  • Europe: Numbered 41–76
  • Asia: Numbered 1–30

When ordering from LamsOpal Jewellery, confirm which sizing system applies to your piece and verify the conversion if needed.

Tips for Accurate Sizing

Finger size can fluctuate due to temperature, time of day, and activity level. For the most reliable measurement:

  • Measure your finger in the evening when it's at its normal size
  • Measure multiple times to ensure consistency
  • Account for the knuckle—your ring should slide over it comfortably but not slip off easily
  • If you're between sizes, consider sizing up slightly for comfort

Resizing Your Ring

If your ring doesn't fit perfectly, many pieces can be resized by a professional jeweller. However, certain designs—particularly those with intricate settings or delicate details—may have limitations. Contact us to discuss resizing options for your specific piece.

Finding your ideal ring size is the first step toward enjoying your jewellery to the fullest. Take your time with the measurement process, and don't hesitate to reach out if you have questions about sizing your LamsOpal piece.

 

HK  DK/EU US UK Inner
Diameter		 Inner Circumference
Size Size Size Size mm.  mm.
4 44 3 E 14.0 mm.  44 mm.
5½ 45 3¼ F 14.4 mm.  45 mm.
6 46 3¾ G 14.7 mm.  46 mm.
7 47 4 H 15.0 mm.  47 mm.
8 48 4½ I 15.0 mm.  48 mm.
9 49 5 I½ 15.6 mm.  49 mm.
10 50 5¼ J 15.9 mm.  50 mm.
11 51 5¾ K 16.2 mm.  51 mm.
12 52 6 L 16.5 mm.  52 mm.
13 53 6¼ M 16.9 mm.  53 mm.
14 54 7 N 17.3 mm.  54 mm.
15 55 7¼ N½ 17.5 mm.  55 mm.
16 56 7½ O 17.8 mm.  56 mm.
16½ 57 8 P 18.2 mm.  57 mm.
17 58 8½ Q 18.6 mm.  58 mm.
18 59 8¾ R 18.8 mm.  59 mm.
18½ 60 9 R½ 19.1 mm.  60 mm.
19 61 9½ S 19.4 mm.  61 mm.
20 62 10 T 19.8 mm.  62 mm.
21 63 10¼ U 20.2 mm.  63 mm.
22 64 10¾ V 20.6 mm.  64 mm.
23 65 11 V½ 20.8 mm.  65 mm.
24 66 11½ W 21.0 mm.  66 mm.
25 67 12 X 21.3 mm.  67 mm.
26 68 12½ X½ 21.8 mm.  68 mm.
27 69 12¾ Z 22.1 mm.  69 mm.
28 70 13 Z + 1 22.3 mm.  70 mm.
29 71 13½ Z + 2 22.6 mm.  71 mm.