James Shigley（詹姆斯·希格利）
Title: Distinguished Research Fellow
Area of expertise: Gem identification, synthetic and treated diamond identification
Selected Published Research
- The Gemological Properties of the Sumitomo Gem–Quality Synthetic Yellow Diamonds. Gems & Gemology (1986)
- Color Grading of Colored Diamonds in the GIA Gem Trade Laboratory. Gems & Gemology (1994)
- A Foundation for Grading the Overall Cut Quality of Round Brilliant Cut Diamonds. Gems & Gemology (2004)
- Grading “D-to-Z” Diamonds at the GIA Laboratory. Gems & Gemology (2008)
- Recent Advances in the Understanding the Geology of Diamonds. Gems & Gemology (2013)
Education
- Bachelor of science in geology, University of California Berkeley, Berkeley, California, United States, 1971
-
Ph.D in geology, Stanford University, Stanford, California, United States, 1982
- Thesis: Phosphate minerals from the Stewart Mine, Pala, California
- Advisors: Gordon Brown (Stanford University), Richard Jahns (Stanford University), and Richard Erd (United States Geological Survey)
