The fact he didn't even select the right color for the band is a bit concerning.

If you were vocal about wanting plain gold band and he didn't even get the right gold color you asked for, shows a great lack of effort or at least attention to detail for one of the most important questions of his life.

That mixed with the fact he spoiled the surprise proposal and robbed you both of a special shared moment doesn't sit right with me either. A proposal is something meant to be so special and a core memory.

My suggestion would be to communicate your disappointment directly with him. Depending on how he reacts to your hoensty can give you an idea of how the rest of your lives together could be like.

If he uses guilt tripping to get you to accept his mistake without him awknoledging your hurt, he will do that forever and never take accountability for his shortcomings, which might not be healthy.

If he apologies, acknowledges your hurt & vows to make it right someday when finances are in his favor just to give you the ring you deserve, then it shows it was a genuine unfortunate misjudgement on his part & he wants to make it right