Ulrika D’Haenens-Johansson
Gemological Institute of America, New York Laboratory, New York, NY
Activity
2024
-
LARGE NATURALLY GROWN DIAMONDS WITH TREATED PINK COLOR
T263 Gem Minerals, Localities and Geological Significance (Posters)Wednesday, 25 September 20248:00 AM - 5:30 PMHall D
2016
-
DISTRIBUTION OF [SI-V]- DEFECT IN NATURAL TYPE IIA DIAMONDS
T254 Gemological Research in the Twenty-First Century: Characterization, Exploration, and Geological Significance of Diamonds and Other Gem Minerals (Posters)Tuesday, 27 September 20169:00 AM - 6:30 PMExhibit Hall E/F
2015
-
DISCOVERY AND DISTRIBUTION OF THE [SI-V]- DEFECT IN HPHT-GROWN GEM-QUALITY DIAMONDS
T300 Gemological Research in the 21st Century: Exploration, Geology, and Characterization of Diamonds and other Gem Minerals (Posters)Wednesday, 4 November 20159:00 AM - 6:30 PMExhibit Hall
2014
-
CARBON ISOTOPE ANALYSIS OF CVD SYNTHETIC GEM DIAMONDS
T104 Gemological Research in the 21st Century: Exploration, Geology, and Characterization of Diamonds and Other Gem Minerals IMonday, 20 October 20148:00 AM - 12:00 PM202/203