Research Article Search Results

Doug Hucker, CEO of the American Gem Trade Association (AGTA), gave real-world, practical tips to attendees at the 2009 Career Fair in Carlsbad.

Members of the American Jewelry Design Council (AJDC) shared advice with GIA students when they visited the Carlsbad campus.

Joel Schechter, CEO of Honora, shared the key attributes his father, Stanley Schechter, taught him to look for in an exemplary employee - loyalty, honesty, respect and attention to detail - at GIA’s 2009 mini Jewelry Career Fair held in Las Vegas.

Knowledge of type allows gemologists to better evaluate if a diamond might be treated or synthetic, and whether it should be sent to a laboratory for testing.

This section, from the Summer 2009 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

In November 2008, the Bangkok laboratory was fortunate to have an opportunity to briefly examine seven stones that the client had faceted from this parcel.

During the past 25 years, the corundum market has been transformed from one of medium to high-priced gems to one that encompasses nearly all price ranges.

This article discusses the history and ongoing development of GIA's color grading system, and explains how its laboratory applies it.

Since late 2007, rubies and sapphires have been mined by hand methods from both eluvial and primary deposits at Winza in central Tanzania.

The finest and rarest emeralds are sometimes said to have an optical effect called gota de aceite.

Seven Chocolate Pearls supplied by Ballerina Pearl Co. and 12 untreated Tahitian cultured pearls (for comparison) were exposed to conditions of consumer care and wear.

Modern gemologists and diamantaires are faced with a broad spectrum of color and clarity treatments ranging from the simple to the highly sophisticated.