Ring Size Guide
Purchase with Confidence
We pride ourselves on ensuring that your online shopping experience with Diamond Jewellers goes as smoothly as possible. Whether you’re purchasing an engagement or wedding ring, a gift for a loved one, or simply a beautiful piece of jewellery for yourself, we understand how important it is that your ring fits correctly. And so, to help you purchase our jewellery confidently, we have several options to help you find the correct ring size.
The Diamond Jewellers Specialist Ring Size Service
The most accurate way to measure your fingers is to visit our store. Here, one of our friendly, professional team will be happy to take your ring size using an industry standard sizer. It won’t take more than a few minutes and you’ll simply be asked to try on different sized metal rings until we find the size that fits you best.
Ring Size Conversion Chart
To discover your ring size, simply measure the inside diameter of an existing fitting ring and check the measurement against our handy chart below. If you’re still left unsure, we’ll be more than happy to help in identifying your correct ring size at your nearest Diamond Jewellers store.
Inside diameter (mm) | Inside circumference (mm) | Ring size (mm) |
14.48 | 45.5 | G |
14.88 | 46.8 | H |
15.29 | 48 | I |
15.49 | 48.7 | J |
15.9 | 50 | K |
16.31 | 51.2 | L |
16.71 | 52.5 | M |
17.12 | 53.8 | N |
17.53 | 55.1 | O |
17.93 | 56.3 | P |
18.34 | 57.6 | Q |
18.75 | 58.9 | R |
19.15 | 60.2 | S |
19.56 | 61.4 | T |
19.96 | 62.7 | U |
20.37 | 64 | V |
20.78 | 65.3 | W |
21.18 | 66.6 | X |
21.59 | 67.8 | Y |
21.79 | 68.5 | Z |
