Fade Out, Fade InYou’ve seen it in hair color, nail polish, leg wear, and sapphires. Now, ombré—that trendy, shaded color style—is seeping into pearl jewelry.The nomenclature differs, depending on the vendor: Baggins calls its looks, part of its Moonlight collection, color-graduated; Mastoloni refers to its version as a fade. Yet the pieces all feature a similar aesthetic: a light-to-dark transition that makes for a stunning and uncommon sight.“We noticed how much retailers and consumers really flocked to a necklace that was not your typical pearl creation,” explains partner Ray Mastoloni, whose New York City brand began experimenting with strands in different color and size combinations two years ago. “We immediately sold through our first lot of inventory.” (Ombré earring and bracelet options are on the horizon in 2014.)Baggins graduated-color strands with Tahitian and