Kat already linked to my unenhanced OEC. It is definitely a warmer stone, which I really like. They seem to range anywhere from a K to an N or so (at keast that is what Mrs Mike C has noted). Mine is set in a closed bezel so it is hard to tell what it is as it can be really white in sunlight and much warmer inside my car in overcast weather. I guess it be around an L-M or so though...I fully admit I may be off though!
The Amora enhancement seems to take them to a J or so. The Amora Gem will be an F.