Before I proposed, my (now)wife and I discussed this and we did some research, then went with Moissanite.

She has a ring with a huge very shiny stone that doesn't break when it hits something, and we both also still have some money left.

It's awesome that all these other options exist as well!

(Similarly, we got married at home with a friend as an officiant* and only close family present. It was great.

*He had earlier gotten himself ordained by mail so he could officiate the wedding of his own daughter.)