As anyone who has accumulated a collection of jewelry knows, there’s nothing like the detritus in drawers, boxes and overflowing jewelry boxes. Amid the diamonds and opals, the silver and gold (OK, if ...

You find a box of old brooches, clip-on earrings, and chunky necklaces in a closet or from a relative’s estate. You’re not sure if it’s all “junk jewelry” or if one of those pieces could help you ...