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Activity

2024

• LARGE NATURALLY GROWN DIAMONDS WITH TREATED PINK COLOR
  T263 Gem Minerals, Localities and Geological Significance (Posters)
  Wednesday, 25 September 2024

  8:00 AM - 5:30 PM

  Hall D

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2019

• ANALYSIS OF 480 NM BAND IN A BI-COLORED DIAMOND
  T288 Gemological Research in the 21st Century—Gem Minerals and Localities
  Wednesday, 25 September 2019

  1:30 PM - 5:30 PM

  Room 132ABC, North Building
• STUDY OF DIAMOND GROWTH BASED ON NICKEL DISTRIBUTION
  T269 Gemological Research in the 21st Century—Gem Minerals and Localities (Posters)
  Wednesday, 25 September 2019

  9:00 AM - 6:30 PM

  Hall AB, North Building

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2018

• CUBO-OCTAHEDRAL GROWTH STRUCTURE IN A TYPE IB DOMINANT MIXED TYPE DIAMOND: A RARE DIAMOND FORMATION
  T110 Gemological Research in the Twenty-First Century—Characterization, Exploration, and Geological Significance of Diamonds and Other Gem Minerals (Posters)
  Monday, 5 November 2018

  9:00 AM - 6:30 PM

  Halls J-K

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2017

• IRRADIATED AND ANNEALED NATURAL PINK DIAMONDS
  T172 Gemological Research in the 21st Century—Characterization, Exploration, and Geological Significance of Diamonds and other Gem Minerals (Posters)
  Monday, 23 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF
• NICKEL RELATED ABSORPTION CAUSING GREEN COLOR IN HPHT GROWN SYNTHETIC DIAMOND
  T172 Gemological Research in the 21st Century—Characterization, Exploration, and Geological Significance of Diamonds and other Gem Minerals (Posters)
  Monday, 23 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF

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2016

• TREATED HYDROGEN RICH DIAMONDS
  T254 Gemological Research in the Twenty-First Century: Characterization, Exploration, and Geological Significance of Diamonds and Other Gem Minerals (Posters)
  Tuesday, 27 September 2016

  9:00 AM - 6:30 PM

  Exhibit Hall E/F

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2015

• MICRO-DIAMONDS IN CHROMITITE AND PERIDOTITE
  T300 Gemological Research in the 21st Century: Exploration, Geology, and Characterization of Diamonds and other Gem Minerals (Posters)
  Wednesday, 4 November 2015

  9:00 AM - 6:30 PM

  Exhibit Hall
• 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 2015

  9:00 AM - 6:30 PM

  Exhibit Hall
• TEMPERATURE EFFECTS ON RADIATION STAINS IN NATURAL DIAMONDS
  T16 Radiation Effects, Mineralogy, and Materials Science of Actinides I: In Honor of Rodney C. Ewing, 2015 Roebling Medalist
  Sunday, 1 November 2015

  8:00 AM - 12:00 PM

  Room 317