I just got this little (4 1/8 in. long) jewel made by Zen Toolworks in Ca. The picture doesn't do it justice. I couldn't resist for 35 bucks and it works great.
www.ncwoodworker.net/pp/data/500/medium/100_0922.jpg
www.ncwoodworker.net/pp/data/500/medium/100_0922.jpg