So you’ve inherited some jewelry from a relative, or got a potential bargain on a few pieces at a flea market or estate sale. How do you know if it’s costume jewelry or the real stuff?

In case you hadn’t noticed by now, Hailey Bieber has a thing for name jewelry. The Rhode founder has long made a puffy bejeweled B pendant necklace, designed by Alex Moss, a staple of her day-to ...