Open circle 9ct yellow thread drop earrings are must have to add that extra sparkle. Stardust refers to synthetic glitter material, which is adhered to the surface of the jewellery to create a unique shimmering finish. To prevent any damage to your piece of jewellery, it is important to take care of it by removing it prior to washing, bathing, doing dishes, household chores, strenuous activities, exercise, sports and swimming.