Great Falls Studios Tour is THIS weekend! If you have not seen the work of these artists and live in the DC area, then you must. These are not crafters. These are real artists with studios that produce amazing, quality work. My Dad is included in this description:)
I can speak for my Dear Dad and tell you that all his pieces are designed and hand-crafted. There is no casting involved and each piece is unique. (He prices his jewelry really reasonably too!)
You can find a map and a list of the artists here.