CaseyR,
Pearl earrings will be closest to your eyes, and the color of your hair will make a difference in how they contrast. You might find the cherry Tahitians especially flattering, or perhaps peacock with pink. (I'm hoping some day for natural color red pearls, lol.) Meantime, I agree with Wendy; one pretty much has to try them. My eyes are hazel with golden brown around the pupil; haven't found any colors that make them seem very green, darn it! (Tinted contacts aren't an option.)