EJ is not a very good place to go looking for prot pally questions.
Maintankadin is a much better source.
As Ozy said, stat priority is Mastery>Dodge~=Parry>Stam>Exp>Hit
You want your Dodge and Parry to be as close to each other as possible, rating wise. the percentage will be different as Parry gets more %per point of rating than dodge does, but they get equal amounts of diminishing returns.
If you have gear w/ no mastery then reforge to mastery. Anything else reforge to try to even out parry and dodge ratings.
For the few gems you got they look ok, but for red sockets I'd go w/
[COLOR="Dark Orange"Fine Ember Topaz[/COLOR]
Reds get Fine Ember Topaz, Blues get Puissant Dream Emerald and Yellows get Fractured Amberjewels.