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«“√ “√ √“™∫— ≥±‘µ¬ ∂“π ªï ∑’Ë Ú˜ ©∫— ∫∑’Ë Û °.§.-°.¬. ÚıÙı Sakda Siripant ˜Ùı that of a smaller-sized ruby of the same quality. This is because the smaller stones are easier to find than larger ones. 3. Value The word “value” in our context means its authen- ticity. A natural ruby, without hav- ing undergone any treatment and originating from a world-famous origin such as Mogok, is consid- ered, by the trade, to be a premium gemstone. Therefore, the first pri- ority in the grading process must be to determine whether any form of treatment or enhancement has been used. Only then can we logi- cally proceed to the analysis of the gemstone’s color, clarity, cut, and weight (carats). The Impact of this Research on the gem and Jewelry Industry The Ruby Grading System was presented for the first time to 150 members of the Jewel Fest Club and other invited traders at its Annual General Meeting at the Dusit Thani Hotel on November 7, 2001 and to 300 TGJTA mem- bers and the exhibitors of the Bangkok Gem and Jewelry Fair at the Napalai Ballroom of the Dusit Thani Hotel on November 26, 2001. Presentations were also made to 130 Japanese ruby import- ers and retailers at the GIT on References 1. Sakda Siripant. Color communication system for gems. J Gems & Gemmo- logy 1999; 35:162-3. 2. Yasukaza Suwa. Gemstones quality and value. Volume 1. Tokyo: Sekai Bunka Publishing Inc; 1999. January 21 and February 6, 2002. The new ruby grading system was described in the GIT gem indentification report used to pro- mote the sale of rubies in the Ruby Year 2002 in Japan. Up to April 20, 2002, a total of 1,700 rubies were certified by using this method.