Costume Jewelry in Yiwu The costume jewelry industry in Yiwu consists of over 3,800 suppliers. 70% of these companies are export-oriented, and offer low-end designs in small volumes.More than 95% of these companies are privately owned, the rest being joint ventures between local and foreign investors. Manufacturers in Yiwu seldom offer designs under inhouse brands. As more companies acquire direct export rights, the smaller, less-competitive...