He is currently the CEO of the Bahrain Institute of Pearls & Gemstones (DANAT). He was formally Managing Director for SE Asia for the Gemological Institute of America, Laboratory Director for the AGTA (American Gem Trade Association) Gemological Testing Center in New York City, Director of AIGS (Asian Institute of Gemological Sciences) in Bangkok, and Chief Executive and Laboratory Director GAGTL (Gemmological Association & Gem Testing Laboratory of Great Britain) in London. Has published papers extensively in such journals as The Journal of Gemmology (UK), Gems and Gemology (USA) and many others. Has Co-authored the books, The Crown Jewels, and, The Pearl & the Dragon. He has delivered lectures to gemologists and traders in many countries including: Australia, Bahrain, Brazil, Canada, China, Colombia, Dubai, England, France, Germany, Hong Kong, India, Israel, Italy, Japan, Singapore, Thailand, Sri Lanka, and the USA (several States). In addition to his work with diamond, ruby and sapphire, he has studied and visited pearl producing areas in several countries including: Australia, Bahrain, China, Indonesia, Japan, Scotland, Thailand, UAE, and Vietnam and is a leading authority on natural pearls, both salt and freshwater.
A recent expedition to acquire and characterize Natural Pearls from Australian Pinctada Maxima
This presentation offers a summary of the data collected on the shell and the pearls discovered during a 2018 expedition off the west coast of Australia and includes microscopy, X-ray-microradiography, X-ray computed microtomography, various forms of spectroscopy, and LA- ICP-MS chemical analysis.
Impressions from the first EGS 2007 in Idar-Oberstein
Register for the European Gemmological Symposium
on May 24 – 26, 2019 in Idar-Oberstein.
During the two days’ conference, you will enjoy numerous internationally recognized and distinguished speakers, as well as a broad spectrum of subjects including diamonds, coloured stone, pearls and jewellery.