Illusion Prong Ring (tut003). This quick and simple ring creates an illusion prong setting for a 6 mm bead. A modified version of this project was published in "Contemporary Bead and Wire Jewelry" by Suzanne Tourtillott and Nathalie Mornu.
6 Ways to Make Higher Quality Wire Jewelry - some great wire working tips plus a video. (This entire website is packed full of wonderful tutorials on everything you need to know about making jewelry from wire.)