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

Article

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.

Japanese Jadeite: History, Characteristics and Comparison with Other Sources

Ahmadjan Abduriyim, Kazuko Saruwatari, and Yusuke Katsurada, May 5, 2017

Examines the sources, colour, texture and chemical composition of jadeite from Japanese deposits.

Imperial Jade of Burma and Mutton-Fat Jade of India: Mining, Trade, and Use from Antiquity to the Present

Books: Imperial Jade of Burma and Mutton-Fat Jade of India

Richard W. Hughes, July 31, 2015

Review of S.K. Samuels’s Imperial Jade of Burma and Mutton-Fat Jade of India: Mining, Trade, and Use from Antiquity to the Present.

Nephrite Jade from Guangxi Province, China

Zuowei Yin, Cui Jiang, M. Santosh, Yiming Chen, Yi Bao, and Quanli Chen, October 31, 2014

Introduces the Chinese nephrite mine in Hechi and characterises the “band” and dendritic patterns found in this material.

Jadeite bangle revealing natural inclusions

Jadeite Bangle with the Appearance of Polymer Treatment

Larry Tai-An Lai, July 25, 2014

A jadeite jade bangle is submitted for lab testing to investigate the possibility of treatment.

Cross jewel of gold, turquoise, other gems

GIA Museum Exhibits in New York

Kristin Aldridge and Stuart Overlin, July 25, 2014

A brief look at GIA's permanent museum exhibit at the New York lab and campus.

Shattuckite from the DRC

Stuart Overlin, July 25, 2014

Rare shattuckite from the Democratic Republic of Congo, as seen at the Tucson Gem and Mineral Show.

Jewellery Shanghai 2014

Jennifer Stone-Sundberg and Ren Lu, July 25, 2014

An insider look at the May 2014 show, held at the Shanghai Word Expo Exhibition & Convention Center.

Dyed Bone as a Red Coral Imitation

Gagan Choudhary, July 25, 2014

A specimen presenting as red coral is revealed to be dyed bone.

Rare Faceted Wurtzite

Amy Cooper and Nathan Renfro, July 25, 2014

A stone submitted for identification is revealed to be the first wurtzite examined by the GIA lab.

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