کارگاه های آموزشی
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منتشر شده در 29 خرداد 1395
ورک شاپ عملی روش های جدید شناسایی ماهیت الماس
(CVD & HPHT)
طبیعی، بهسازی و روش های مصنوعی و متشابهات الماس
MS Wilma van der Giessen
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جهت اطلاعات بیشتر روزهای شنبه تا چهارشنبه ساعت 8الی 15 با شماره تماس های 22431766-29905602 تماس حاصل فرمائید.
One day workshop
New techniques to identify the true nature of a diamond: natural, treated or lab-grown (CVD&HPHT) & simulants lecturer: Wilma van der Giessen, GG, FGA
Wilma van der Giessen
Wilma van der Giessen,fga,gg
Van Gaesbekestraat 40
2274 RW Voorburg
The Netherlands
Email: این آدرس ایمیل توسط spambots حفاظت می شود. برای دیدن شما نیاز به جاوا اسکریپت دارید
Date of birth: 20 march 1961
More than 35 years retail experience, several translations for gemmological institutes. research on gems .valuations, lectures about diamonds and gems,
Specialities: gem identification, fancy coloured diamonds, diamond grading, jewelry design, sales.
Training people about gemmology and diamonds: i organize private gem and diamond courses.
Research on all gemstones and diamonds
Private gem and diamond training
Lectures and Presentation (SHELL,IWC,PWC )
Translations for Gemmological Institutes (Gem A, IGI)
Education
Gemological Institute of America
GG, gemmology and diamond technology
1986 – 1991
diamonds and diamond grading
coloured stones and coloured stone grading
gem identification
Activities and Societies: member alumni association GIA
Gemmological Association of Great Britain
FGA, gemmology and diamond technology
1984 – 1985
gem identification
Deutsche Gemmologische Gesellschaft
Diamond grading, gemmology and diamond technology
1981 – 1985
Schoevers College
french, german, spanish
French, Spanish, German
international gemmological institute
diamonds
1995 – 1997
diamond grading, rough diamond grading