Hi all, I would not recommend relying on ring size information from other people, even if their height and weight is the same as your partner's. Ring size can vary depending on the shape and size of your finger, as well as how the ring fits the finger. The best way to find out your partner's ring size is to ask them to tell you their size. If you want a surprise proposal, you can try to find out your ring size by trying on a ring from his collection that he doesn't wear as often. I can recommend one site to you This site has a wide selection of this jewelry as well as high-quality material for a price lower than the competitors. I am sure that you will find on this site what you like and your future husband.