Tourmaline Birthstone Necklace. Introducing a stunning and unique one-of-a-kind watermelon tourmaline slice necklace! Handcrafted with gorgeous pinks and greens, it features 14Kt gold filled accents and a 16" chain with rice pearls at the closure. Each stone is unique in shape and color, and can also be customized with 14Kt gold upon request. A true showstopper – get yours today!