This is a great description that captures the social pressure aspect quite well. Guys aren't the ones wearing the ring everywhere!
I believe that the bride-only thing is US-only, or (maybe) limited maybe limited to ex-british regions, but it's definitely not universal, and definitely not a thing in latinamerica (diamonds aren't a thing here either) or a great deal of europe.
Usually the only jewel men wear is their wedding band.
Agree grandparent comment truly made me understand the woman's side of thing. It's easy for men to dismiss them as being irrational.
I am glad that diamond engagements aren't a thing in India. (Although in place of it we have a ton of other retarded customs). Gold is pretty much the standard here - which is actually quite practical. It makes a good liquid asset, holds its value, stays as an insurance and safety during hard times.
I prefer this strength in women - as it is not an isolated feature of personality. Life is too short to spend it with someone that shallow, unless that is exactly what you want/need.
And yes, if it's not clear, women requesting diamond rings as statement of true love (that's just not true and won't make the relationship any better), or blabbing about 3-salary-worth of diamonds... meh, I say you can do better.