Stand back, everybody. I'm going to do science.
I have this ring from years back that I lost in the bottom of a thing and when I found it again it was all tarnished.
I kept it, because why not, and the other day the internet is all Here's how you fix tarnished silver without actually doing any, you know, polishing. Put strip of tinfoil in sink. Fill sink with some hot water. Mix in a tablespoon of baking soda and one of salt for every 4 cups or so of water. Put in silver and leave it for, oh, like a minute. Or longer, whatever. It's not like you're doing anything.
Hey presto. Alchemy.