China Jewelry Market Assessment, By Product Type [Necklaces and Chains, Earrings, Rings, Bracelets, Others], By Material [Gold, Silver, Platinum, Diamond, Others], By Gender [Women, Men, Unisex], By Category [Branded, Private Label], By End-user [Adults, Children], By Distribution Channel [Online, Offline], By Region, Opportunities and Forecast, 2017-2031F