Natural Watermelon Tourmaline Gemstone Necklace. Beautiful earthy natural colors of Tourmaline. 34 gemstones. Colors of pink, green, amber, blue and yellow. This is a great dainty and feminine necklace. The gems are 7x5mm in size. The necklace length is 18-19". The chain is 14k gold plate and the clasp is 14k gold filled. Shipping is Free!