COLOR UPDATE: I have had numerous
green moissy sightings now.

It always happens on overcast days. If I知 wearing green clothing then my OEC turns apple green. If I知 not wearing green then it turns a light pastel green. The entire stone will turn green and stay that color until it is completely removed from any traces of the crappy lighting.
My OEC still looks perfectly fantabulous in sunlight, my office, my house, grocery stores, movie theaters, and any other indoor lighting you can think of. Although, I was at the mall yesterday and we had gloomy weather; there were sky lights throughout the mall so my moissy looked green inside as well, booo. I can say with certainty now that if I had the available funds, I would switch to an Amora OEC. I probably won't be able to do that for a
really long time, but if I win the lottery then I would switch my stone. Just my two cents!