Lilyan, Try PJ Gill in Woburn, MA. They are located on Fowle St..
If you are looking for a gold plater on the West coast, call JudyLombardi with Gold Seal Plating in Oakland, CA at 510.536.6533. Sheis there Tue-Thurs.
YOU MIGHT TRY ADAMARK JEWELERS 6136 ROSWELL ROAD N.E ATLANTA , GA30328 PHONE 404-252-1185 CONTACT MARK