John King

Chief Quality Officer, GIA Laboratory

John King is respected worldwide as an authority on fancy colored diamonds as well as an accomplished artist. He has held his current position as chief quality officer since 2008.  In that position, Mr. King oversees the global technical quality for the laboratories and assists in the communication of grading standards between GIA Research, Education and the diamond industry.

Mr. King began his career at GIA in 1978 as a diamond grader, and within seven months he was promoted to a double checker/group leader in the Gem Trade Laboratory, where he assisted in training new employees and worked on the final stages of diamond grading report production. In 1980 he was promoted to laboratory supervisor and made responsible for monitoring the work flow and supervising approximately 25 employees.  In 1991 Mr. King was named laboratory projects officer; a position he held until the end of 2005.  In that position he assisted in the coordination of technical projects many of which focused on color appearance in gems, including the research and development of techniques and equipment to enhance laboratory grading, reporting and identification.  From 2005 to 2008 Mr. King was technical director of the New York lab.  Throughout his time in the laboratory Mr. King has been one of GIA's team of graders involved in grading many of the world's important diamonds, including the Smithsonian's Hope diamond, the pink Agra, the yellow Tiffany, the Incomparable, the Centenary, and those in the Smithsonian's 2003 Splendor of Diamonds exhibition.

With more than 30 years of laboratory experience, Mr. King has written about and frequently lectures on colored diamonds and laboratory grading procedures. He has written a number of articles for GIA's award-winning quarterly journal, Gems & Gemology, most notably, "Color Grading of Colored Diamonds in the GIA Gem Trade Laboratory."

Mr. King's training in fine art included studies in color theory and color naming and order systems which have supplemented his work in the laboratory. His art has been shown in a number of exhibitions throughout the United States and abroad. He received his Bachelor of Fine Arts from Wayne State University, Detroit, Michigan and his Master of Fine Arts from Hunter College, City University of New York.


Las Vegas Conference - Thursday, June 2, 2016

About the AGA Conference - Topic & Speaker Info

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