I guess it depends on what you want...gold, sterling, diamonds? And what price range you're looking at..
My pops gave me the cutest li'l diamond studs for xmas, but the gold for the setting is very thin & I have to be careful putting them on & taking them off for fear of bending it....I've been known to fall asleep w/my earrings on, so I have really make sure take these off.
Have you checked out Bluenile? I've had good luck purchasing gifts with them online for my mom.