Happy Earth Day! Today marks the event's 41st year, and in honor of the holiday, a trio of jewelers featured in our April issue débuted gorgeous, limited-edition baubles that give back in a big (green) way. Designers Zhoë Chicco (left), Melinda Maria (right), and Roxanne Assoulin (center) created nature-inspired statement necklaces whose proceeds benefit foundations that work to protect our planet. Best of all, the three ladies shared some insider tips on how to style their jewelry. Click through the gallery for more details on the planet-friendly pieces!