10mm crystal pearls Gemcolors. #5810 Swarovski Lapis-shaded beads. These beads have a genuine Swarovski crystal core with a synthetic lapis pearl coating. There are 50 pearl beads per 20 inch strand. Pre-strung on color-coordinated cord (long enough to knot between beads without restringing). These crystal pearls were designed to match natural gemstone colors found in nature. More durable than genuine pearls. Questions? E-mail us for friendly, expert help!