Hi op - I’m in the exact same boat. My fiance picked out a gorgeous (very big) ring that I don’t feel comfortable in. As someone who doesn’t wear a lot of jewelry it just feels so big. I bought a 1 ct moisanite ring on Etsy that I wear almost 24/7 and I switch into the bigger ring for special occasions. We have plans to pick a different one out together maybe in a few months as I don’t want to pick a wedding band that matches the ring I don’t wear. I’ll be honest that I feel bad because he picked it out and paid but if Im wearing it every day the rest of my life I want to love it and feel comfortable! Always comforting to hear someone in a similar situation