Thai Firm Sues Gem Lab for Identifying Lattice Diffusion

A Thailand heat-treating firm, the Orange Sapphire Company, claims that the Gem and Jewellery Institute of Thailand (GIT) Laboratory has "damaged the value of the company's products and caused confusion among consumers as to whether its orange sapphires are natural or synthetic." According to an article in the May 15 edition of the Bangkok Post the firm is suing the lab for 50 million baht, roughly the equivalent of $1.2 million. The Orange Sapphire Company told the Post that it "uses heat treatment to turn pink rubies into highly sought-after orange-pink or orange sapphires." The GIT lab report says that the sapphires have been beryllium treated, using standard identification nomenclature set forth by the international Laboratory Manual Harmonization Committee (LMHC), which includes AGTA, GIA, SSEF, GAAJ, CISGEM, and the Gübelin Gem Lab as well as GIT. The laboratory report states th
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