Multi-Colored Beads with Freshwater Pearls-Necklace Set. Large Beaded Necklace Set. I call this the rainbow necklace, may have more colors than the rainbow, but we'll make our own. Each large bead is separated by small freshwater pearls and attached to a silver colored chain. The necklace is 18 inches long with twenty-eight small fresh water pearls and eighteen large beads with a lobster claw clasp and matching earrings. Save this set for your summer wear, or spring time.