Do I call this river with a four flush on board?

[vhuntd]

Really tough one I think. I want to say call with 9-1 but what are you really hoping to see? AK no diamond, QQ no diamond, AA no diamond? Almost any raising hand beats you now including KK which seems to be a very real possibility. I think that a fold here is what you should do...there's almost no way that you're ahead here against anybody but the worst of 1/2 fish.