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A notebook, pen, mobile phone with compass app and a digital camera sit on top of a map.

Article

The Stories Behind the Photos: A Gigantic Aquamarine and ‘Gaudy’ Nature

Amanda J. Luke, July 24, 2020

Gemmological photojournalist Robert Weldon shares the stories behind some of his favourite photos.

Article

G&G Announces Most Valuable Article Awards

The G&G Staff, May 12, 2020

G&G announces the winners of the Dr Edward J. Gübelin Most Valuable Article Awards for 2019.

Man sits at his desk with a display stand of multiple pieces of jewelry in front of him.

Article

Alum’s Lifelong Quest: Searching for Jewellery Unicorns

August 14, 2019

Alan Nacht continues his family’s legacy - Bernard Nacht & Co. – and his quest for unforgettable jewellery.

Figure 1: Three views of the same 372.46 ct pearl. Front (left), back (center) and end‐on side (right).

Article

An Unusual Pearl

Nick Sturman, March 31, 2009

An Unusual Pearl: On reviewing the images sent, it was apparent that this was going to be an interesting job.

Article

An Imitation "Melo Pearl"

Nick Sturman, Pantaree Lomthong & Artitaya Homkrajae, GIA Laboratory, Bangkok, January 21, 2011

An Imitation "Melo Pearl"

Figure 1: The external appearance (side‐on and down the drill‐holes) of the two pearls submitted for routine identification.

Article

Pearls with Unpleasant Odours

Nick Sturman, GIA Laboratory, Bangkok, March 23, 2009

Pearls with Unpleasant Odours

A diamond ring without the centre stone, which is framed by two rows of small diamonds.

Article

Jewellery Detectives: Students Search for Clues to Quality Workmanship and Longevity

Amanda J. Luke, July 19, 2019

GIA’s Jewellery Forensics seminar teaches students to become jewellery detectives as they assess jewellery design and engineering for quality.

Trapiche and More...

Duncan Pay, November 6, 2015

Colombia’s unique trapiche emeralds exert a fascination for many gemmologists.

IMG - SP16 Editorial Pay Tucson 198880 300x169

Tucson: A Showcase of Coloured Gemstone Innovation

Duncan Pay, April 28, 2016

An overview of the Spring 2016 Gems & Gemology content.

Garnets, Sapphires, Opals and Tarnish on High-Purity Gold

Duncan Pay, February 1, 2016

An overview of the Winter 2015 Gems & Gemology content.

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