Mary Ann-- My favorite site is worldwidegemstones.net.
Unfortunately, the site is shutting down in a couple of days. But
the guy who does the cutting is still cutting, so if you can get a
look at the site before April 1, and you like what you see, you can
maybe work with him. I've been very happy with the colored stones
and the agates and jaspers I have bought there. Good luck!