system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 - Why diamond has little to no resale value?

Popularly said that diamonds value drop by over 25-50% the sec you buy it. I know that diamonds value is low key de beers bullshit. 
But what I wanna know is how do they calculate the diamond resale value and rational behind 50% resale value of something that never breaks or damages. How do they come up with this shit?
gpt
>How do they come up with this shit?

Same as anything else - the price is what people are willing to pay for.

People typically buy diamonds for engagement/wedding rings or other special occasions. Especially for people locked into the idea of a diamond in particular, try telling someone you're giving them a used diamond. It may not make LOGICAL sense, but people don't act logically.