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sourcingforjewelrymakers.com
Up-to-date and easy to use website solving your production sourcing and contracting needs.
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Gemstones and Color Info
Stone and Bead Sizing
GEMOLOGICAL INSTITUTE OF AMERICA
5345 Ameda Drive
Carlsbad CA 92008 e-mail
760 603-4000 Fax: 760 603-4080
Protect the public trust in gems and jewelry through education, instruments, research and laboratory services.