EXCLUSIVE AT NET-A-PORTER. Jia-Jia Zhu and London Harris were inspired to start their brand after a trip to the desert. The crystal quartz they were given there was the ideal jumping-off point for working with organic stones. Made in the label's NYC workshop, this 14-karat gold necklace is strung with natural amethyst beads - each one is left untreated to highlight its cloudy quality. Wear yours while meditating to help clear your mind of negative thoughts and encourage creativity.