Represent the farking turn card... The turn is where you find out whether or not you are going to win the hand.

If you represent the turn card by hitting it strong - your opponent will fold without one of the 9 remaining diamonds.. a few of which he would fold to any sizeable bet. If he calls - you now have 11 outs (22%) to make a full house. So, since he probably doesn't have a half decent diamond, and since your are 22% to make a full house, you should win this pot.