JA New York Shows. The industry leader for over 100 years. JA New York is proud to produce the three leading jewelry trade shows in the United States: JA New York Summer, JA New York Winter and JA New York Special Delivery. The JA New York shows have attained their level of success for many reasons. The shows are the optimal size with a complete array of exhibitors, giving retailers access to a comprehensive selection of merchandise across all price points, segments and product categories. The shows are perfectly timed to meet the buying needs of the jewelry retailer throughout the year. And all three shows are held in New York City at the Javits Center, an outstanding and convenient location within driving distance for a majority of all U.S. jewelry retailers. The JA Shows are produced by the National Jeweler Network (NJN) a world-class trade show producer and publisher of the industry leading National Jeweler magazine. NJN is part of The Nielsen Company, one of the world's leading publishing and information companies. The JA shows are also the only shows affiliated with Jewelers of America, the largest and most respected jewelry retailer association in the U.S.