As long as she is paying for it, who cares! Of course, there is that whole ill-gotten gains thing...
I bet me You & I footed the bill.
We paid the $4M for the vacation.
Actually, she’s probably not paying for it, and nobody else is, either. The designer is actually the one paying.
Designers routinely “give” things (theoretically on loan) to the rich and famous so that they can be seen in public wearing them, thus providing free publicity.
Some of the rich and famous give these things back, and some don’t.