Glass beads are hardened glass pieces that have been dyed, cut, and polished. They are very hard and versatile, found in a variety of necklace and bracelet styles. Glass bead earrings are also very popular. There are a variety of ways glass beads are made, resulting in styles such as pandora style, italian millefiori style, and cat's eye style beads. The dyes used in glass beads result in a uniform color, making glass beads popular for bead crafting and design.