A beautiful understated necklace by Gem & Tonic. The Herkimer Diamond floats on a delicate solid gold chain and sparkles at the slightest movement. Herkimer Diamonds are double terminated quartz crystals found in Herkimer, New York. So named because of their diamond like geometrical shape and exceptional clarity. Each stone is unique. Pair this lovely necklace with Gem & Tonics matching 'Huggie" earrings.