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Summer 2017
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Geology and Development of the Lomonosov Diamond Deposit, Northwestern Russia
Karen V. Smit and Russell Shor

Carbonado Diamond: A Review of Properties and Origin
Stephen E. Haggerty

Photoluminescence Mapping of Optical Defects in HPHT Synthetic Diamond
Lorne C. Loudin

An Update on Tourmaline from Luc Yen, Vietnam
Nguy Tuyet Nhung, Le Thi Thu Huong, Nguyen Thi Minh Thuyet, Tobias Häger, Nguyen Thi Le Quyen, and Tran Thi Duyen

Characterization of Mg and Fe Contents in Nephrite Using Raman Spectroscopy
Xiaoyan Feng, Yong Zhang, Taijin Lu, and Hui Zhang

Inclusions in Natural, Synthetic, and Treated Sapphire
Nathan D. Renfro, John I. Koivula, Jonathan Muyal, Shane F. McClure, Kevin Schumacher, and James E. Shigley

Big Sky Country Sapphire: Visiting Montana’s Alluvial Deposits
Tao Hsu, Andrew Lucas, Robert E. Kane, Shane F. McClure, and Nathan D. Renfro


Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.
Spring 2017
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Brazilian Diamonds: A Historical and Recent Perspective
Darcy Svisero, James E. Shigley, and Robert Weldon

Cuprian Liddicoatite Tourmaline
Yusuke Katsurada and Ziyin Sun

The Role of Silicon in the Color of Gem Corundum
John L. Emmett, Jennifer Stone-Sundberg, Yunbin Guan, and Ziyin Sun

Japanese Jadeite: History, Characteristics, and Comparison with Other Sources
Ahmadjan Abduriyim, Kazuko Saruwatari, and Yusuke Katsurada

Causes of Iridescence in Natural Quartz
Xiayang Lin and Peter J. Heaney

Characteristics of Gem-Quality By-Product Synthetic Zincite
Ji Zhang, Yujie Gao, and Guanghai Shi

Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.
Winter 2016
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Jaipur, India: The Global Gem and Jewelry Power of the Pink City
Andrew Lucas, Nirupa Bhatt, Manoj Singhania, Kashish Sachdeva, Tao Hsu, and Pedro Padua

Synthetic Emeralds Grown by Richard Nacken in the Mid-1920s: Properties, Growth Technique, and Historical Account
Karl Schmetzer, H. Albert Gilg, and Elisabeth Vaupel

A New Find of Danburite in the Luc Yen Mining Area, Vietnam
Le Thi-Thu Huong, Laura M. Otter, Tobias Häger, Tim Ullmann, Wolfgang Hofmeister, Ulrike Weis, and Klaus Peter Jochum

Inclusions in Natural, Synthetic, and Treated Emerald
Nathan D. Renfro, John I. Koivula, Jonathan Muyal, Shane F. McClure, Kevin Schumacher, and James E. Shigley

Update on Gemstone Mining in Northern Mozambique
Wim Vertriest and Vincent Pardieu

Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.
Fall 2016
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Observations on CVD-Grown Synthetic Diamonds: A Review
Sally Eaton-Magaña and James E. Shigley

Reversible Color Modification of Blue Zircon by Long-Wave Ultraviolet Radiation
Nathan D. Renfro

Sapphires from the Sutara Placer in the Russian Far East
Svetlana Yuryevna Buravleva, Sergey Zakharovich Smirnov, Vera Alekseevna Pakhomova, and Dmitrii Gennadyevich Fedoseev

A New Deposit of Gem-Quality Grandidierite in Madagascar
Delphine Bruyère, Claude Delor, Julien Raoul, Rufin Rakotondranaivo, Guillaume Wille, Nicolas Maubec, and Abdeltif Lahfid

Peridot from the Central Highlands of Vietnam: Properties, Origin, and Formation
Nguyen Thi Minh Thuyet, Christoph Hauzenberger, Nguyen Ngoc Khoi, Cong Thi Diep, Chu Van Lam, Nguyen Thi Minh, Nguyen Hoang, and Tobias Häger

Bead-Cultured and Non-Bead-Cultured Pearls from Lombok, Indonesia
Nicholas Sturman, Jeffery Bergman, Julie Poli, Artitaya Homkrajae, Areeya Manustrong, and Nanthaporn Somsa-ard

Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.
Summer 2016
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Mining Diamonds in the Canadian Arctic: The Diavik Mine
James E. Shigley, Russell Shor, Pedro Padua, Christopher M. Breeding, Steven B. Shirey, and Douglas Ashbury

Fabergé Cossack Figures Created from Russian Gemstones
Timothy Adams and Christel Ludewig McCanless

The Color of Responsibility: Ethical Issues and Solutions in Colored Gemstones
Jennifer-Lynn Archuleta

The Challenges of Cutting a Large Gem Opal Rough
Theodore Grussing

In Rainier’s Footsteps: Journey to the Chivor Emerald Mine
Robert Weldon, Jose Guillermo Ortiz, and Terri Ottaway

Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.
Spring 2016
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An Introduction to Photoluminescence Spectroscopy for Diamond and Its Applications in Gemology
Sally Eaton-Magaña and Christopher M. Breeding

Chrysoberyl Recovered with Sapphires In the New England Placer Deposits, New South Wales, Australia
Karl Schmetzer, Franca Caucia, H. Albert Gilg, and Terrence S. Coldham

Gem-Quality Serpentine from Val Malenco, Central Alps, Italy
llaria Adamo, Valeria Diella, Rosangela Bocchio, Caterina Rinaudo, and Nicoletta Marinoni

Identification of “Pistachio” Colored Pearls Treated by Ballerina Pearl Co.
Chunhui Zhou, Joyce Wing Yan Ho, Sally Chan, Jessie Yixin Zhou, Surjit Dillon Wong, and Kyaw Soe Moe

Variscite from Central Tajikistan: Preliminary Results
Andrey K. Litvinenko, Elena S. Sorokina, Stefanos Karampelas, Nikolay N. Krivoschekov, and Roman Serov


Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.
Winter 2015
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Vanadium- and Chromium-Bearing Pink Pyrope Garnet: Characterization and Quantitative Colorimetric Analysis
Ziyin Sun, Aaron C. Palke, and Nathan Renfro

The Origin of Montana’s Alluvial Sapphires
J.C. (Hanco) Zwaan, Eric Buter, Regina Mertz-Kraus, and Robert E. Kane

The Grand Sapphire of Louis XIV and the Ruspoli Sapphire
François Farges, Gérard Panczer, Nassima Benbalagh, and Geoffray Riondet

Characterization of Tarnish Spots in Chinese High-Purity Gold Jewelry
Taijin Lu, Jian Zhang, Yan Lan, Ying Ma, Hua Chen, Jie Ke, Zhenglong Wu, and Miaomiao Tang

Splendor in the Outback: A Visit to Australia's Opal Fields
Tao Hsu, Andrew Lucas, and Vincent Pardieu


Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.
Fall 2015
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Colombian Trapiche Emeralds: Recent Advances in Understanding Their Formation
Isabella Pignatelli, Gaston Giuliani, Daniel Ohnenstetter, Giovanna Agrosì, Sandrine Mathieu, Christophe Morlot, and Yannick Branquet

Large Colorless HPHT-Grown Synthetic Gem Diamonds from New Diamond Technology, Russia
Ulrika F.S. D’Haenens-Johansson, Andrey Katrusha, Kyaw Soe Moe, Paul Johnson, and Wuyi Wang

Letšeng’s Unique Diamond Proposition
Russell Shor, Robert Weldon, A.J.A. (Bram) Janse, Christopher M. Breeding, and Steven B. Shirey

Origin Determination of Dolomite-Related White Nephrite through Iterative-Binary Linear Discriminant Analysis
Zemin Luo, Mingxing Yang, and Andy H Shen


Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.
Summer 2015
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Dual-Color Double Stars in Ruby, Sapphire, and Quartz: Cause and Historical Account
Karl Schmetzer, Martin P. Steinbach, H. Albert Gilg, and Andrea R. Blake

Digital Photomicrography for Gemologists
Nathan Renfro

Rubies and Sapphires from Snezhnoe, Tajikistan
Elena S. Sorokina, Andrey K. Litvinenko, Wolfgang Hofmeister, Tobias Häger, Dorrit E. Jacob, and Zamoniddin Z. Nasriddinov


Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.
Spring 2015
Our Price: $29.95

Blue Spinel from the Luc Yen District of Vietnam
Boris Chauviré, Benjamin Rondeau, Emmanuel Fritsch, Phillipe Ressigeac, and Jean-Luc Devidal

The Chinese Soul in Contemporary Jewelry Design
Andrew Lucas, Merilee Chapin, Moqing Lin, and Xiaodan Jia

Amethyst from Boudi, Morrocco
Fabrizio Troilo, Abdelghani El Harfi, Salahaddine Mouaddib, Erica Bittarello, and Emanuele Costa

Visible Absorption Spectra of Colored Diamonds
James E. Shigley and Christopher M. Breeding

Mozambique: A Ruby Discovery for the 21st Century
Merilee Chapin, Vincent Pardieu, and Andrew Lucas

Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).

GIA student and alumni save 10% on back issues! Enter coupon code GGALUM and a GIA Student Number at checkout.