Thais to Disclose Beryllium Treatment

The Thai Gem and Jewelry Traders Association and the Japan Jewelers Association have signed a memorandum of understanding on disclosure procedures for beryllium-treated corundum. They announced the agreement at the CIBJO Congress in Cape Town, South Africa, on March 14. It comes five years after undisclosed beryllium-treated sapphires, treated in Thai laboratories, were sold to Japanese gemstone suppliers as heat-treated, pinkish orange padparadscha sapphire. It also comes at least two years after the introduction of beryllium-treated blue sapphire and ruby. U.S. Federal Trade Commission guidelines call for disclosure of all gemstone treatments, and the American Gem Trade Association requires members to disclose all enhancements and treatments when selling colored gems. Nevertheless, there have been allegations that Thai laboratories have created new treated product and introduced it
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