One sterling silver (.925 sterling silver round solid tube) cored glass boro bead.
Bead made with 3/16 inch (4.76 mm) mandrel hole and then cored with 5 mm sterling silver tube with flared ends. See below dimensions (diameter - thickness - hole) for approximate measured bead size.
All beads handmade in our Anchorage, Alaska torch room, annealed with release removed from mandrel hole. Beads are larger than life size to show detail and color.
(Click on picture to view larger bead image)