In the Miami area you could try A. G. Jewelers Supply Co., 1189
Sawgrass Corporate Parkway, Sunrise, FL 33323 (954) 846-9400. In the
Orlando area there is FDJ On Time, LLC, 1180 Solana Ave., Winter
Park, FL 32789 (407) 629-6906. Both of these companies are full
service supply houses and should carry anything you might need for
your jewelry needs.