See Gem As
Tools
Research
CVD Synthetic Diamond with Unusual Inclusions
Examination of a CVD synthetic diamond with an unusual pattern of growth dislocations that resemble natural inclusions.
Color-Change Garnet in Diamond
The Indian Gemological Institute’s Gem Testing Laboratory recently examined a 0.30 ct colorless round brilliant-cut diamond containing an interesting inclusion.
Susan Jacques’ Top 20 Traits to be Successful in Retail
Susan Jacques spent more than 30 years in retail before becoming president and CEO of GIA in January, 2014. She offered these traits for success during a panel discussion at GIA’s mini Jewelry Career Fair held on June 6, 2010 in Las Vegas.
Botswana’s Scintillating Moment
Examines the history of diamond production in Botswana and the long-term outlook for beneficiation through value-added industries.
Yellow CVD Synthetic Diamond
A Fancy yellow type Ib CVD-grown synthetic diamond undergoes testing at the New York lab.
Long-Term Durability of CVD Synthetic Film on Diamond
A natural diamond with a CVD synthetic film is examined at GIA's Carlsbad lab.
80 Years of Gems & Gemology
Over these eight decades, G&G has been a critical resource for the gem and jewelry industry. Groundbreaking articles on diamond grading appeared as early as the 1940s. Through the Lab Notes section, GIA gemologists reported on the latest treatments and synthetics, which helped to protect the trade and the public.
Landmark Articles from Gems & Gemology
For eight decades, Gems & Gemology, GIA’s peer-reviewed quarterly journal, has educated generations of readers and protected the gem-buying public. We share ten landmark articles that were particularly significant to gem and jewelry professionals.
Recent Advances in Understanding the Geology of Diamonds
Examines the last two decades’ advances in analyzing and understanding the formation of natural diamonds, and their relation to the earth’s formation.
Describing 58-facet Round Brilliant-Cut Diamonds at GIA
Many beautiful older diamonds are cut to different proportions than modern round brilliants, which makes them a challenge to grade according to modern cut conventions. This article describes how the GIA accommodates these historic gems.
Book Review: From a Snowflake to an Iceberg: The McFerrin Collection
Optical Defects in Diamond: A Quick Reference Chart
A simple chart on optical defects in diamond, including those that produce coloration and fluorescence colors.
