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Most of the gemstones are treated with some or the other method to improve the quality and overall appearance of gemstone. The improvement in quality makes the stones more valuable. IGJI GEM-TESTING LABORATORY identifies the treatments done on gemstones to bring more transparency in the trade. For the disclosure of the treatments IGJI GEM-TESTING LABORATORY is strictly following the guidelines and describing the treatments in treatment identification reports. 1. Heat treatment in Ruby and Sap