Swarovski crystal pearls are the first pearls in the world with a crystal core and an innovative pearl coating. They set new quality standards in crystal manufacturing and processing and are the best reproduction of natural pearls. This is the Swarovski 5818 1/2 Drilled Round Pearl, the hole is drilled halfway into the back of the pearl so that you can insert something in one end but still have a solid pearl for the finished piece. Swarovski 5818 1/2 Drilled Round Pearl shown here is Pearl White 3mm.