Summer G&G Offers New Information on Wittelsbach-Graff and Hope Diamonds, Play-of-Color Opal from Ethiopia
August 12, 2010
August 12, 2010
CARLSBAD, Calif., Aug. 12 -- The Gemological Institute of America issued the following news release:
The Summer 2010 issue of the Gemological Institute of America's (GIA) Gems & Gemology, now available, features a comparison of two of the world's most important blue diamonds, new sources of opal and cutting-edge technology for pearl identification.
In the lead article, Dr. Elo�se Gaillou and colleagues describe how they tested the famed Wittelsbach-G . . .
The Summer 2010 issue of the Gemological Institute of America's (GIA) Gems & Gemology, now available, features a comparison of two of the world's most important blue diamonds, new sources of opal and cutting-edge technology for pearl identification.
In the lead article, Dr. Elo�se Gaillou and colleagues describe how they tested the famed Wittelsbach-G . . .