Gem Listing

I know there are tons of sites out there for finding which gem would work best for what slot. Here is a gem listing link that looks like its pre Lich King, but the prefixes on the gems is really what you need to focus on.

Gem Finder

For example,
under Yellow you will find the gem [Enduring Deep Peridot]
Enduring Deep Peridot
+3 Defense Rating and +4 Stamina
"Matches a Yellow or Blue Socket."

Although this is a BC gem, the "Enduring" is the description on it that will also be part of other gems. Search in AH for "Enduring" under gems and you will get some like

[Enduring Talasite]
+4 Defense Rating and +6 Stamina
"Matches a Yellow or Blue Socket."

[Enduring Seaspray Emerald]
+5 Defense Rating and +7 Stamina
"Matches a Blue or Yellow Socket."

and so forth....

Whats good is this also includes orange gems under both yellow and red slots / green gems under both yellow and blue slots / and purple gems under both red and blue slots.

Hope this helps

~Cin