Article Search Results

Types

Articles (79)

Content Type

Feature (79)

Reviewed

Peer Reviewed (15)

Topics

Colour (6) Optical Properties (6) Cut (1) See All Topics

Gemstones

Diamond (30) Sapphire (9) Ruby (7) Emerald (5) Pearl (5) See All Gemstones

XClear Selections

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.

A row of various shaped cut and polished pink diamonds.

Article

Why are Pink Diamonds Pink? GIA Researchers Dive Deep into their Crystal Structure

Russell Shor, October 18, 2019

GIA researchers analysed more than 90,000 natural pink diamonds to better understand how these rare and beautiful diamonds formed and got their colour.

Article

Jewels of Hollywood: Accessories and Jewellery that Made the Stars Shine

Amanda J. Luke, July 19, 2019

“Jewels of Hollywood”, on loan from the Kazanjian Foundation, showcases some of the jewellery and accessories associated with Hollywood royalty.

A wide choker-style necklace of a row of emeralds with rows of diamonds above and below the emeralds.

Article

Spring 2019 Auctions: Premium Prices for Historic Pieces

Russell Shor, June 14, 2019

Gemstones and jewels with historical provenance are bringing the best prices at the spring 2019 auctions.

A man and three women pose in front of India setting.

Article

Find out how GIA connected with alumni and friends at the 2019 Tucson shows.

Amanda J. Luke, March 2, 2019

GIA hosts a variety of events and exhibitions in Tucson each year. Find out how GIA connected with alumni and friends at the 2019 Tucson shows.

The ring is designed with a wavy strip of black diamonds in the center framed on each side with colorless diamonds set in a ruffled edge The earring are crescent shaped with black diamond on the inside framed by colorless diamonds in a ruffled edge.

Article

GIA Researchers Look Inside Black Diamonds

Russell Shor, February 1, 2019

Black diamonds are striking in jewellery. GIA researchers report on the unique properties used to identify black diamonds and the potential treatments.

Young woman works with a Raman spectroscopy machine.

Article

GIA’s First Research Intern: Genesis of a Gemmologist

Erin Hogarth, December 21, 2018

GIA’s Research Internship Programme enables students to get hands-on experience of analysing gem materials, as well as receiving ongoing coaching and mentoring.

A view from behind of a bejeweled winged insect.

Article

A Glittering Garden: A Menagerie of Designs from Mother Nature

Sharon Bohannon, May 18, 2018

Delightful garden creatures and flowers are favourite subjects that transform beautifully into Victorian, Art Nouveau and modern jewellery designs.

The gems spell out “The 2000th Gem Stone Design.”

Article

Gemstone ‘Paintings’ Tell Story of a Master Craftsman, Gem and Jewellery Mentor

Jaime Kautsky, April 27, 2018

A jeweller who quietly built up a circle of inspiration and influence lives on in generations of GIA-educated jewellers and gemmologists.

Crowds mingle on the Baselworld 2018 show floor.

Article

Smaller 2018 Basel Fair is Still Biggest Rare Gem Showcase

Russell Shor, April 24, 2018

Business at the scaled-down Baselworld 2018 Show was spotty. Some jewellery brands and gem dealers had respectable sales, but others found slow trading.

Article Search Results

Types

Content Type

Reviewed

Topics

Topics

Gemstones

Gemstones

Find a Retailer

Visit the campus shop

Subscribe to Knowledge Rocks Emails

G&G Spring 2021 Edition