HELP ASAP WHAT DO I GET HIM

Our three year anniversary is coming up!!!! I literally haven’t bought him any gifts and we are talking a lot about getting married so I want to get him jewellery to wear.. his ex from like 5 years ago already got him a ring and I don’t wanna get him one cause I feel like I’m copying 🙄🙄🙄 or maybe I could but for both of us as promise rings?!!! Idk or a necklace? Bracelets???? Idk please help!!!! I want something meaningful that he can wear!!! Any sites? Or screenshots or idea just comment below!!! I want something expensive but not overly expensive xxxxx