The Importance of Gemstone Testing - Dr Lore Kiefert
Автор: BrankoGems
Загружено: 2023-01-19
Просмотров: 320
Описание:
💎 For more lectures and webinars, visit https://bit.ly/branko-academy
------------------------
This webinar gives an insight about the history of gemstone deposits, treatments, and development of synthetics. It then goes into the parallel development of ways to detect these new trends, and gives hints of what the appraiser or gemologist can do with standard instruments. Covered are a range of selected gems, among them ruby, sapphire, and emerald.
In 1994, Dr Lore Kiefert joined the SSEF Swiss Gemmological Institute where she became Director of the Coloured Stones Department. In 2005, Dr. Kiefert moved to New York to head the AGTA Gemmological Testing Center as Laboratory Director and returned to Europe to join the Gubelin Gem Lab as Chief Gemmologist in 2009. In 2020, she opened her own consulting company.
------------------------
Powered by @GemHuntersSerbia
Повторяем попытку...
Доступные форматы для скачивания:
Скачать видео
-
Информация по загрузке:
