Lockets have been around in one form or another for centuries — but they've never been so versatile. The old-fashioned charms now come in necklace, bracelet, watch, and earring varieties, and have been spotted up and down the fall runways (Nanette Lepore, Pamella Roland, Jean-Paul Gaultier). Click ahead to see a slideshow of our 23 high-to-low favorites, including spins by Lanvin, Marc by Marc Jacobs, Free People, and more.