Are you unsure which size ring to order? Rather than guess, buy this simple to use ring sizer and it will fly out to you via First Class post and then you can order with confidence. You will also receive a gift voucher for the value of the sizer which you can redeem against your purchase when you are ready to go ahead, you get to keep the sizer forever!
To use the sizer fit it to your finger and check you can get it off without moving the slider. It should feel snug over your knuckle and comfortable on your finger, not too tight or too baggy.