I've been searching here and on 3-4 WoW addon/interface websites but couldn't find what I was looking for: an addon that tells me how many gems of each color I have currently in my gear.

Does anyone know if such an addon exists? It would be nice for figuring out what gear for what meta-gem I want or what meta gem I could use right now, etc etc...

Hmm.. can't you parse it from the tooltip? Similar to how all durability addons work, they just search for the "Durability: %d / %d" line :>

well, if I use siena's Gem Viewer (an AH addon, really nice) and search for meta gems and move the mouse over a meta gem it shows me which criteria I currently fulfill, so it can be done (even if reversed from the bonuses given by the socketed gems). Or is that a normal tooltip functionality? I haven't searched for gems before as it was a pain in the backside w/o this addon

Yes, that probably would work. Requires storing bonuses of all gems however, and hoping there isn't different gems with same stats .

You can pretty much just parse the tooltip and look for certain stats. For example, if the gem contains STR it counts as 1 red. if the gem contains STA it counts as 1 blue. Im betting the ace item library already does it or could be easily modified to do it.

Would be a good ace mod and probably pretty simple.

I've figured out a pretty handy way of doing this without having too much overhead everytime your gear swaps in and out and have begun some preliminary code to get this done. Don't expect anything post haste, but "it's coming". I had plans of adding it to the character sheet dropdowns, in with the "defense", "spell", etc type stuff. Any objections with that?

If I may be so bold, may I suggest modifying the helm tooltip to include the information would be the most succint/relevent way to do it?