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To make sure you don’t make a mistake while buying a ring online, the BiaJewelry team has prepared a small size guide with several options available to you. Otherwise, to make sure you don’t make a mistake, you can always come and try the rings on in the Showroom.
Moreover, if you bought one of our rings and the size does not suit you, you can always come and exchange it for another size in our shop!
US Size | Diameter (mm) | Inside Circumference (mm) |
4 | 14.9 | 46.6 |
4.5 | 15.3 | 48.0 |
5 | 15.7 | 49.3 |
5.5 | 16.0 | 50.6 |
6 | 16.6 | 51.8 |
6.5 | 16.9 | 53.1 |
7 | 17.3 | 54.5 |
7.5 | 17.7 | 55.7 |
8 | 18.2 | 56.9 |
8.5 | 18.6 | 58.3 |
Small | 14.0-15.2cm | 5-5.5 inches |
Medium | 15.2-16.5cm | 6-6.6 inches |
Large | 16.5-17.8cm | 6.5-7.8 inches |