GJM, where & how great jewelry is made!

Founded in 1989 in New York City, U.S., Gramercy Jewelry MFG Corp. is today one of 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.

Quality assurance separates GJM from many other manufacturers. With consistent quality of our products and reliability of our services, GJM is proud to work with many leaders of the industry. As a result, our products can be seen in the showcases of many leading retailers throughout... (more)


Take your concept drawings and reference materials to these factories. They will assist in refining your concept and thinking through the components involved in the Making Process.


These factories will mass produce your designs.