Natural Watermelon Tourmaline Gemstone Necklace. Beautiful earthy natural colors of Tourmaline. 50 gemstones. Colors of pink, green, amber, yellow and blue. Teeny tiny gemstones, 2mm in size. This is a great dainty and feminine necklace, the kind you never take off. The necklace length is 18-19". The chain is 14k gold plate and the clasp is 14k gold filled. Shipping is Free!