Black Tourmaline is a Crystal offering protection and grounding to the wearer, seen here on the fabulous @everydaysugar, the Black Tourmaline sits perfectly in a Gold Vermeil cradle and on a weighty Gold flat belcher chain, the perfect Crystal to wear solo or with your other Necklaces. All Sterling Silver/Gold Vermeil, Black Onyx 3cm, adjustable chain 41/47cm.