14k Yellow Gold Pendant with Natural Tourmaline and Diamonds No two alike. Each pendant features a carefully selected natural tourmaline, held in an open, architectural 14k yellow gold setting. Scalloped prongs and diamond-set loops bring a delicate, lace-inspired quality to the design, while the open sides reveal the beauty of the gemstone from multiple angles. Every tourmaline is chosen for its distinctive color and character. Each pendant is one of a kind.