Choose a necklace around the pendant shape you want to show and the neckline you plan to wear. Explore heart, shell and celestial designs, from the fan-shaped shell pendant necklace to the three-dimensional planet necklace. Before layering, check each product's stated chain length and pendant dimensions rather than relying on a photo alone. Start with one focal pendant, then compare other pieces by length and shape. For a styling example, see our compass necklace styling guide.