When ordering certain products from this site you will be asked to select the size required on the relevant product page. For rings, the standard British System of sizing is used, with sizes ranging from P through to Z. Please click here for our ring sizing guide which will let you use an existing ring to work out your size, and which also contains details of equivalent sizes in the USA, Japan, and Europe.


If you don't already have a ring, please email us at customercare@sevenlondon.com with your address details, and we will post out a ring sizer to you (UK only).