Full Wholesale Factory Pack of Swarovski 5817 Half Drilled Round Cabochon 6mm Crystal Dark Grey contains 250 beads. Please allow 3-4 working days for dispatch of Wholesale orders. Crystal Pearls are perfect replicas of genuine pearls. They are made of a unique crystal core covered with an innovative pearl coating, producing a flawless, silky smooth, rounded surface. They are available in a variety of shapes, sizes, and colors .