New Fall Color Iridescent Sky. This Blue Glass and Mirage Bead Necklace features diamond twilight Mirage Beads and silver foil lining artisan sapphire beads. Sterling silver beads accent this handmade necklace. Mirage Beads in Iridescent Sky where inspired by the mood jewelry of the 60s, These thermo-sensitive liquid crystal beads change color with a variation in temperature. If you want that uniquely different piece of jewelry you'll find this Mirage and blue bead necklace a must have<