The eco-chic bandwagon is getting more and more full and jewelry designer Robyn Rhodes is one of its latest riders. Just in time for Earth Day, Robyn is donating 20 percent of the proceeds of this Rumi necklace, named after model/actress Josie Maran's (left) daughter, to Global Green USA. Depending on the metal you choose (sterling silver or 14K-gold filled), the triple-strand necklace featuring an Amazonite pendant will cost you $120 and $126 respectively.