Multi-tourmaline Necklace with Sterling Silver Beads. Handcrafted gemstone necklace of multi-colored tourmaline brios and sterling silver beads. This is a lightweight very feminine necklace that’s easy to wear. It’s an elegant necklace for day to evening and it would be a lovely necklace for the bride, too. The closure is a sterling silver toggle. This necklace is about 18 inches long.