I purchased these for $12.99, and they were worth the price.  I went back a week later to purchase another pair, and they were sold out :  I haven't had any issues yet wearing these, such as sensitivity or color wearing etc. I hope they get them back in stock so I can have a back up pair for when I lose one.

UPDATE 12/11/2011 -  I'm still wearing these earrings and the color looks the same as day one.  No visible wearing at all.  I would definitely purchase again.