I have a pretty flashy diamond trilogy ring that he bought me last year for our anniversary. About nine weeks before he moved out. I took it as a sign of commitment - that the hard times in our marriage were over and we were working on things. I remember wearing it at work and showing it to my friends and being so pleased with it. I don't wear that ring when I am in public - I'd feel ashamed, somehow, after him leaving such a short time after getting it for me. Humiliated. But I do wear it when travelling away from home and sometimes around the house at night. I think these symbolic things can support our intentions, or they can get us stuck. I don't know how it is for me. It sounds like you've made the right decision for you, Yail.
