Yes, its very nice to receive and exchange gifts but to say that you would lose his trust if he doesnt give you a “real” diamond seems absurd to me.
The loss of trust isn’t because he gave a fake diamond. The loss of trust is because he either outright lied about it or led her to believe it was a real diamond.
If he told her upfront the diamond isn’t real, there would not be a loss of trust.
The Wolf