Where would you recommend?

I am looking to propose to my girlfriend and she has made it VERY clear that she does not want me to spend a lot of money. I understand this community probably gets this a lot but would anyone have any vendors they recommend for engagement rings? I just want a quality ring that will last until we decide to get new ones. That’s mainly it, just good quality.

Thank you to anyone who reads this and I hope you all have nice day!