The company 's manufacturing facilities produce approximately 60 % of the merchandise sold -- the balance, including rose - gold and almost all non-jewelry items, coming from third parties overseas. Tiffany 's oversees a significant U.S. manufacturing base, with jewelry and silver goods produced in Mount Vernon, New York; majority in Cumberland, Rhode Island; and Lexington, Kentucky, while silver hollow - ware is produced in Rhode Island. The company 's other subsidiaries, located in facilities outside the U.S., process, cut and polish the diamonds.
where does tiffany and co make their jewelry
Mount Vernon, New York Cumberland, Rhode Island Lexington, Kentucky