Notably, the diamonds were never recovered. Sounds like she’s getting paid a million dollars a year to stay in prison. Might be worth it.
(I realize that if she works for a criminal organization she’d be sharing the proceeds of fencing the diamonds, which would sell for less than the claimed retail value, but still, I do think 5 years is pretty light for a theft of 5 million dollars worth of unrecovered property when people likely (I don’t know UK prosecutions) get significant sentences for much, much smaller thefts.)