I personally don't see anything that really strikes out at me that you have done wrong, at least for your tanking spec. Only got very, very minor suggestions:
1. Put Tuskarr's vitality to boots for a slight stamina loss but a boost in speed
2. Remove titanium plating for stamina on your shield.
3. Your main problem I see is gemming. Get rid of the Champion's Ametrine, any + def gems, and replace them with 30 stam. Ensure to keep 1 purple gem for your socket bonus, and that can +stam with either dodge/agi/expertise
4. Personally, I would change glyph of Revenge to something like Devestate unless your hurting for rage when your heroic strike spamming.
Past that your gear is fine for ICC. Should have no problems