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Recent Articles

Hurricanes Harvey, Irma May Wreak Havoc on Luxury Sales, Too

Russell Shor, September 18, 2017

The devastating damage of Hurricanes Harvey in Texas and Irma in Florida will likely take a toll on luxury sales.

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A sorter works at a table lined with sorted piles of diamond rough.

Diamond Producers Aim for Lower Qualities in Today’s Market

Russell Shor, September 18, 2017

The average value of rough diamonds mined in 2016 took a sharp drop, while demand has trended toward smaller stones and lower qualities.

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Husband and wife gaze happily at emerald rough found in a Colombian mine.

Colombian Emerald Industry: Winds of Change

GIA, September 8, 2017 Topics: Gemology, Geology, Localities, Mining, Trade, Travel

Andy Lucas, GIA’s education manager of field gemology, shares the changes he observed in Colombia’s major emerald mining and cutting areas.

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The Unexpected Origins of Big Diamonds

GIA, September 8, 2017 Topics: Gemology, Geology, Inclusions

Dr. Evan Smith, Ph.D., GIA research scientist, shares his findings on the unexpected origins of big diamonds and what their characteristics tell us about the earth.

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On the left is a 5.26 ct Fancy deep blue heart shape HPHT synthetic diamond. On the right is a 5.27 ct Fancy deep blue emerald cut HPHT synthetic diamonds.

The Latest on Synthetic Diamonds

GIA, September 8, 2017 Topics: Identification, Material properties, Synthetics, Technology, Treatment Process

Dr. James Shigley, GIA distinguished research fellow, shares the latest developments about HPHT and CVD synthetic diamonds, and information on GIA’s ability to identify them.

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A man holds a long round metal rounded column of metal with a ring on it. The ring is in focus, his face in the background is not.

A ‘Game-Changing’ Quality Assurance System for Jewelry Workmanship

Jaime Kautsky, September 6, 2017

Education teams create a step-by-step system and terms to evaluate jewelry workmanship – in the classroom and the trade.

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Tips From the Bench
How to Modify a Goldsmith Hammer

Compiled by GIA’s Jewelry Manufacturing Arts Instructors
 

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Library
The First Point of Reference for Gems and Jewelry

Located on GIA's Carlsbad campus, The Richard T. Liddicoat Gemological Library and Information Center is the largest, most complete library of its kind.

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