Check out the Jewelcrafting guy in Jade Forest. There are PvP gems you can learn. E.g. for myself, I got Willful Serpent's Eye, which is 160 int, 320 resilience. They're all mixed gems, fitting in red as well as yellow slots.
Another thing to note is that the JC PvP gems are correctly itemized unlike the PvE gems. That is to say all gems have a 1:2 Primary Stat to Secondary Stat ratio.