Founded in 1989 in New York City, U.S., Gramercy Jewelry MFG Corp. is today one the largest jewelry manufacturers in the fashion capital of the world. Offering full services to our customers, from product design to post sale service, GJM has established a strong reputation as one of the best manufacturers in the industry.A member of the Jewelers Board of the Trade, product innovation has been the comer stone of GJM's focus. Our original "Magical Setting" four-princess diamond designs and other innovations have won both Design and/or Utility Patents in the United States, Canada, Germany, England, Italy, France and Hong Kong. To date, our patent portfolio has more than 30 patents worldwide. And our products utilizing the °Magical Setting" are some of the best sellers in recent years in the U.S.