Cut high quality gorgeous crystal rivolis, produced by Potomac Bead Company. Many of these rivoli also have Czech glass coatings, produced to match many of the famous Czech beads and colors. Potomac Crystal Rivoli are available in a variety of sizes, including 10mm, 12mm, 14mm, and 18mm. Each rivoli is undrilled, and is designed to be set into a setting, or bezeled with seed beads or wire. Each size is equally pointed and faceted.