Unless the blinds are very weak-tight, then you should raise every chance you get. You have huge equity here, a straight draw is fairly unlikely, and just because there are two diamonds on the board doesn't mean someone has a draw. Flushdraws aren't going anywhere no matter what you do. And even if you just call the flop with intention to raise on the turn to protect your hand, you're still giving the blinds good enough odds to call on both streets with a flushdraw. Your hand isn't very vulnurable, there is no point in protecting, just build the pot as much as you can, and hope someone tries to draw to two pairs.