This bead is approximately 8mm by 12mm. The beads are set with Swarovski crystals and have a Sterling Silver core. All the large hole beads fit the bracelet systems such as Pandora, Brighton, and Chamilia. They also look great on a silver chain or on hoop earrings. The colors in this bead are Aquamarine, Light Sapphire, Sapphire, and London Blue.