This video by Images Jewelers shows how to make a custom ring. It's an overview, not a how-to. But it's a good overall look at how to make a piece of jewelry using CAD and a 3D Grower. Watching it will help you envision the process from beginning to end.
The BEaJEWELER™ initiative is sponsored by MJSA, the trade association dedicated to professional excellence in jewelry making and design. This initiative was originally developed in partnership with the New Approach School for Jewelers in Arrington, Tennessee