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