I found a nice used mount in need of minor repairs on eBay and found a good moissanite stone there as well. Beautiful ring, around 400 all told for a white gold ring and a 2 carat stone. Can get crazy lab grown gems online of any type, so enjoy however you choose to do rings together.

Another vote for moissanite, I got my wife's engagement ring and wedding band from kobelli.com

Does it have to be an engagement ring? I got my girlfriend a gold bell from Mene to wear with her choker. We talked about it beforehand and we both agreed diamonds and that whole industry are stupid and she loved the bell idea. I'm gonna propose in a week in Japan when we go on vacation.

My wife and I got our rings at a pawn shop. Lots of old and fun rings

buy lab grown stones then go to a local jeweler to pick out the setting for it

Just get a tattoo so you can’t lose them. Unless you anticipate a divorce.

https://www.1215diamonds.com/

Great site. 100% real diamonds. Grown in a lab. Cuts down on cost and ethics violations, but will just look like diamonds.