Cost is an intrinsic part of the signal for diamond rings because the signal is "I care about you so much I will spend lots of money to prove it". But for job-r

Cost is an intrinsic part of the signal for diamond rings because the signal is "I care about you so much I will spend lots of money to prove it". But for job-readiness, the signal does not have to be costly. It could be accomplished with tests. That would prove ability. It would be harder to prove grit or endurance. But compensation packages could be adjusted to filter out people who are less likely to stick around.