The pearls used in the Swarovski Fashion Jewelry collection are simulated pearls and are not natural. Crystal Pearls by Swarovski are pearls made with a crystal core (there is a crystal in the middle of the pearl, which gives the pearl its shine). Their unparalleled harmonious and lustrous shimmer is achieved using a unique coating technology developed by Swarovski. It is the first production method in the world to combine the quality of a perfect crystal core with the exquisite beauty of a pearl coating. The innovative technology by Swarovski gives the pearl a mysterious glow, which appears to be radiating from within the pearl itself. The strictest quality controls help ensure the absolute flawlessness of each Crystal Pearl.