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A diamond necklace that features a 100.02 Fancy Intense yellow diamond. The pendant is done in the shape of a musical instrument.

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Bullish Predictions for 2019 Seasonal Sales Despite Concerns; Sotheby’s Hong Kong Auction Sales

Russell Shor, October 21, 2019

US seasonal sales predictions are better than expected. Sotheby’s Hong Kong auction features a 100 ct yellow diamond necklace by GIA alumna Anna Hu.

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Jadeite Jade Quality Factors

Learn about the factors that make jade so desirable.

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2019 in Review: Diamond Trade Begins Recovery, Jewellery Retail Sector Blooms Late and Extraordinary Auction Sales

Russell Shor, December 16, 2019

2019: A year of ups and downs in the gem and jewellery industry, including diamonds, retail, auction sales and laboratory-grown diamonds.

A ruby and diamond choker. The centre section is made of six strands of red pearls, framed by rubies and diamonds.

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Mughal Jewels Auction: Al-Thani Collection Raises $109 Million (£87.5 Million)

Russell Shor, July 16, 2019

Collectors from around the world descended on Christie's Maharajas & Mughal Magnificence auction of the jewels from the Al-Thani Collection on 19 June.

The superior size and color of the 325.13 ct. tsavorite garnet from Merelani was discovered at the Tucson Gem & Mineral show in 2007. Courtesy of Michael Couch & Associates, West Des Moines, Iowa; photo by Robert Weldon © GIA

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The Glory of Green Gems

Sharon Bohannon and Peggy Tsiamis, June 12, 2015

Green gemstones, which can uplift and heal our spirits, have been popular gem choices ever since we began to adorn ourselves with jewellery.

The Museum of London’s Extraordinary Cheapside Hoard

Robert Weldon and Cathleen Jonathan, October 14, 2013

The history and mysteries behind a treasure of jewels hidden during the 1600s, a window to the past being fully opened to the public for the first time since a chance discovery a century ago.

The 25.59 ct. Sunset Ruby, set in a ring by Cartier, drew a price of $30.3 million at Sotheby’s Geneva sale; the highest price ever paid for a ruby at auction and the highest per-carat price (nearly $1.2 million) ever paid for a ruby. Courtesy of Sotheby’s.

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Auctions Brighten Soft Year

Russell Shor, June 22, 2015

The spring auction season ended on another strong note with sales – again − setting records.

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Good Luck Charms

March 11, 2016

Gems and jewellery are often used as good luck charms because they can evoke power and positivity. Check out these lucky charms used around the world.

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Shenzhen: The Frontier of China’s Gem and Jewellery Industry

Tao Hsu, January 25, 2016

All jewellery professionals are familiar with the city of Shenzhen, a global jewellery manufacturing centre and a leader of China’s fast-growing gem and jewellery industry. Join the GIA team as we tour the city and discover more about its leading jewellery brands.