How do I get my bf to buy me something pretty?

He has a silver chain I gave him when we started going out that kind of symbolizes our relationship and I want him to give me something like that but he hasn’t. We’ve been together 6 months and don’t do birthday or holiday gifts so not that way. I don’t even care if the stones or anything is real I just want something I can wear that I’ll look down at and go “awww I love him so much :D” How???