Our favorite ingenious jewelry design now in mermaid hues of blue, green, and purple. Three strands of dyed mother-of-pearl discs are secured by a magnetic clasp that’s strong enough to rely on but easy to open. And it even doubles as a silver accent bead depending on how you position it. Add the bracelet for a coordinating look, or match up the clasps to transform the bracelet into a necklace extender.