This necklace is in 14 karat yellow gold.
.1 Carat Cushion Cut Tanzanite & Hidden Halo Diamond Necklace in 14K Yellow Gold (1 gram), 18 Inches, I/J by SuperJeweler This elegant gemstone and diamond necklace features one 6mm cushion cut tanzanite gemstone at approximately 1 carat.04 carats.