[mntndrew]

Just to correct the Count's comment, there are two opponents, not three, one of whom is all-in after calling the flop bet from the player who limped and cold called the 3-bet.

I think the BN has two cards -- he's all-in, and he's a donkey. And I don't think the flop bettor is bluffing, but I *do* think he could have all sorts of one pair hands without a diamond, not to mention small diamonds that he might fold here. He could also have some two pair hands that this particular player can't put additional bets in with where the turn and river would go bet-call/check-check.