Turquoise and Yin Yang Necklace15. 5" long, 2" chain, 17. 5" total length genuine turquoise metal is 14 kt gold fill. Pendant is also 14 kt gold fill with enamel "Gold filled" comprises a solid layer of gold (14K) permanently bonded to a base metal, such as brass. The minimum layer of gold must equal at least 1 20th of the weight of the total item. It is very hard wearing and under normal wear the gold will not peel or flake, unlike gold plate, and is commonly used as a more