Mirage Beads. Colour Changing Polymer Mood Beads. Aurora Diamonds. 15mm Across. Quantity: 2. Come alive with sensuous colour as your wear these colour-changing mood beads! Inspired by the mood jewellery of the '60's and '70's, these thermo-sensitive liquid crystal beads change colour with minute variations in temperature. Style: Diamond-shaped spacer beads with the holes going corner to corner. Measurements: 12x12mm, 8.5mm thick. The holes are 2.5mm thick. Quantity: 2 beads NOTE: Although very durable, do not submerge in water.