This issue honors the legendary gemologist G. Robert Crowningshield; reports on the cause of color in black diamonds, as well as the first diamond cut copyright.

The Gemological Institute of America (GIA) has eleased the Fall 2003 issue of its award-winning quarterly journal, Gems & Gemology. This issue features a tribute to the remarkable career of G. Robert Crowningshield, vice president of the GIA Gem Laboratory, as well as reports on the cause of color in Siberian black diamonds and
the first known U.S. copyright registration for a
diamond design.

In the lead article, “G. Robert Crowningshield: A Legendary Gemologist,” Tom Moses, vice president of Identification and Research Services, and Dr. James Shigley, director of GIA Research, review Crowningshield's remarkable 55-year career and his enormous contributions to gemology and gemological education. "We cannot emphasize enough Bob Crowningshield's contributions to GIA and to the gem and
jewelry industry," commented G&G editor-in-chief
Alice Keller. “His many significant discoveries and decades-long involvement with G&G helped lay the foundation for the science of gemology as we know it today.”

Two other articles share the Fall issue. In “An Investigation into the Cause of Color in Natural Black Diamonds from Siberia,” Dr. Sergey V. Titkov of the Russian Academy of Sciences in Moscow and coauthors report on the cause of color in a selection of Siberian black diamonds. Contrary to previous studies indicating that black diamonds are colored by graphite, the authors found that their diamonds were colored by inclusions of magnetite and hematite. In “Obtaining U.S. Copyright Registration for the Elara Square Cut-Cornered Brilliant Diamond,” Chicago attorney Howard Rockman recounts the background and registration process for what is believed to be the first U.S. copyright registration for a diamond cut design.
Fall Issue of Gems & Gemology Honors Legendary Gemologist G. Robert Crowningshield.

Still more news and research can be found in the regular sections of the Fall issue. The Lab Notes column contains the latest reports from the GIA Gem Laboratory, while Gem News International reports on important developments in Madagascar, Canada, and Myanmar (Burma), as well as new materials like the Apollo gem-quality CVD synthetic diamonds. The issue concludes with the popular Book Reviews and Gemological Abstracts sections, which examine the current literature in gemology and related subjects.
To order a copy of the Fall 2003 issue or to subscribe, visit www.gia.edu. Or contact Circulation Coordinator Debbie Ortiz at [email protected], or call toll free 800-421-7250, ext. 7142. Outside the U.S. and Canada, call 760-603-4000, ext. 7142.


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Source: GIA.edu press Release
November 2003