I didnt because I got what I wanted at the time.
Instead of getting a replacement engagement or wedding ring why not suggest to hubby that he invest in a nice Eternity ring for you.

I was in the same situation as you. I chose my engagement and wedding rings based on what we could afford at the time. I think it was 6-8 years later and I felt the engagement ring looked outdated (mind you I have been married 19 years in September and I LOVE my $200 wedding band) My husband and I talked about it and we ended up trading my original and getting a new one made, again with the budget we had. I love it and he was happy to make me happy.

I have no engagement ring and have the most simple wedding band excisting and have no desire to have a nicer ring.
But you look into adding a piece to your ring ?
https://www.weddingringshop.com/blogs/10_ways_to_upgrade_your_engagement_ring/117

I say yes why not! You can always put the old ring on the right hand and wear the new one. This shows you still love your old one just as much as the new one by wearing both.

I love my rings and my engagement ring isn’t huge and sometimes I wonder about whether I would upgrade one day.. and I don’t think so. I think I would buy another ring that I wanted but wear it on my other hand. Why not wear that everyday too?

If you want to change your ring/s it is your decision.

I love my original rings and have no desire to change them.

I think if you can afford a new ring and want one go for it.

I love mine and I think everyone deserves to. If you are both happy go for it otherwise I love the idea other people have suggested of an eternity ring.

No harm in getting a new one if yah can afford it. You have to look at it everyday, you need to like it

Be happy with what you got now. Don’t think about the past and it wasting your present moment.

Maybe it was all he could afford at the time. I wouldn’t complain about it because it would have been bought with love. When my late husband bought my ring I loved it because it was from him and he chose it.

Have you thought about an eternity ring? Its ok to want something better but maybe you can both design one that fits your other 2 rings.

I don’t think its a waste of money if you are going to wear it for a long time.

I love my ring, it’s so simple and small but I don’t know if I could change it. It has memories attached to it.