Ah, another thread full of bitter men who do not want to buy a diamond because they are "worthless." I bought the girl a diamond because she wanted a diamond. It makes her happy. She says it makes her smile every day. That's "worthless", huh? If that is worthless then find me something that makes her so happy that isn't worthless and I would have bought that instead. But there is no such thing, for her. For some girl…
See, when you say you see a "thread full of bitter men", I cant help but feel you are expressing some kind of bitterness yourself. At least, I don't share your dismissive feelings towards the concept that a ring should symbolize more than monetize (yeah, strawman right back at'ya :) ). You know... when something is _really_ important, yet no argument is provided to back it up. "Makes her smile", is a positive side-effect, yet not a rational reason that can counter what is bad about diamonds. The whole notion that affection and devotion should be demonstrated through financial sacrifice (and I don't use sacrifice in the terms of "something given up or lost", but "destruction or surrender of something for the sake of [deity]") is a cultural irrationality that you seem to have a very positive look on, and good for you!
If someone looks at his/her ring, and feels negative emotion because this ring, which is meant to symbolize the "let's share a life together" between two people, is only made of plain gold, and not something which was more expensive to obtain... It's a good thing for me that I find this cultural irrationality an unattractive red flag.
Have a nice day.