Lithos 18K Yellow Gold Handmade Smoky Quartz, Blue Topaz, Citrine, Amethyst and 2-Green Quartz Necklace. This necklace is handmade, including the solid link chain. The links are 5.5 mm x 4.5 mm. It terminates with a lobster closure. The gemstones are set in wrap tights. It is 18 inches long. 500-70-943