Gemming your gear can be a brainbusting endeavour. What gems are good for us? Which gems should go in which sockets? When is a socket bonus worth pursuing? I have a number of yellow gems in my gear, but it was only after I sat down and did the math that I decided to make some serious changes.
You may be sitting on an untapped potential. No doubt your two blue gems and 17 red gems are beneficial to you, but there are a few more points to squeeze out here and there. Whether you want to get your hands dirty, or simply want to have a table of reference, lets get our hands dirty and look at some gems!