If she wears a ring on her right hand ring finger, we can work out the size if you can sneak it in to us. Alternatively, you can try her ring on your finger and see where it fits. Or you can get a girlfriend to ask discreetly if she has ever had her finger sized. You could also draw around the inside of a ring, or tie a piece of string around her finger. These methods are not exact, but can give us a good idea. Even if it is not the perfect fit the first time, we include one free resize with our engagement rings to alleviate any problems (see our Re-size Policy for further details).