I'm gonna play the devil's advocate here.
Having been a licensed pawnbroker in the state of Co in a previous life.....the ad states diamonds, not CZ's.
Although the watch is horrible, and Dan the man needs spelling and grammer lessons, I doubt the seller is going to risk his expensive and hard to get state license.... passing off CZ's as diamonds.
He probably loaned too much on it and trying to recoup some money.
Funny, I saw a gold version of this watch on Pawn Stars a few months ago, and Rick lent that guy quite a bit of money on it based on the gold/diamonds.