Rachel Bilson wears her earrings for a cause! The actress (and InStyle contributor) teamed up with JewelMint, the jewelry collection designed by Kate Bosworth and stylist Cher Coulter, to kick off the brand’s new charity initiative—the JewelMint Celebrity Guest Curator Series. With this project, Bilson is the face of one piece of jewelry for the collection, and 50% of sales of her piece will be donated to charity.