gemmological การใช้

• Moreover, SSEF places a strong focus on education and pursuing gemmological research.
• Roskin is a Graduate Gemologist and Fellow of the Gemmological Association of Great Britain.
• It was the first gemmological laboratory to offer testing for possible Beryllium diffusion in corundum.
• It a pioneer in gemmological research, collaborating with leading Swiss universities and other worldwide gemmological laboratories.
• It a pioneer in gemmological research, collaborating with leading Swiss universities and other worldwide gemmological laboratories.
• Upon successful completion of this course graduates may become a Fellow of the Canadian Gemmological Association ( FCGmA ).
• Every Diamond is dispatched with its own unique GIA ( gemmological institute America ) certification that gives full peace of mind.
• It offers basic and advanced gemmological training courses, scientific gemmology workshops and expert lectures covering a wide array of gemmological subjects.
• It offers basic and advanced gemmological training courses, scientific gemmology workshops and expert lectures covering a wide array of gemmological subjects.
• This committee matured into the Gemmological Association of Great Britain, a Branch of the NAG, and eventually became a wholly independent organisation.
• The "'Canadian Gemmological Association ( CGA ) "'is a Canada-wide professional organization which sets standards in the practice of gemology.
• English arms included those of Calderdale, Pocklington, Teignbridge, the Gemmological Association of Great Britain and the Football Association of Wales ( he was a keen football player and coach ).
• Its chemical and physical properties are the same to that of natural amethyst and it can not be differentiated with absolute certainty without advanced gemmological testing ( which is often cost-prohibitive ).
• The inaugural meeting of The "'Gemmological Association of Australia ( GAA ) "'was held in the School of Arts Building, Pitt Street, Sydney on 29 October 1945.
• The blue star sapphire's weight of was certified by the Gemmological Institute of Colombo; the institute said that it had never certified a gemstone larger than " The Star of Adam ".
• Based upon the curriculum of the Gemmological Association of Great Britain, the course provides an overview of the physical and optical properties of gemstones, as well as practical skills in the testing and identification of gemstones, their simulants and treatments.
• Jerry Ehrenwald, president of the New York-based International Gemmological Institute, an independent laboratory for testing and valuing gem stones and jewelry, suggested a fair resolution might be to have the jeweler take back the diamond and issue a refund.
• A lead cast of the French Blue diamond was discovered in the gemmological collections of the French museum including H . Horovitz, Martin du Daffoy who was the historian and jeweller from the Place Vend鬽e in Paris, as well as directors and leaders from the museum.
• "The Journal of Gemmology ", a quarterly academic peer-reviewed journal, published in collaboration with the Swiss Gemmological Institute SSEF and supported by the American Gemological Laboratories ( AGL ) and the Gem and Jewelry Institute of Thailand ( GIT ) . 
• He was invited to speak in APEC Melbourne 2000, APEC Beijing 2000, 60th Anniversary of the German Gemmological Association 1992, Germany; and the prestigious meeting by invitation only of the International Gemmological Conference held in Spain 2001, India 1999, Germany 1997, Thailand 1995, etc.