Hi,
I don’t have personal experiences with these folks, but they have
been recommended to me:
BCS Jewelry Contract Services
Pawtucket, RI
Also, someone mentioned to me a company named A.U. In Detroit,
Michigan. I can’t find any info on them, and the person who
recommended them to me is not responding to my emails----but I
thought I’d mention it, in case it is helpful.
Cindy