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Fall 2008
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
Identification of Melee-Size Synthetic Yellow Diamonds in Jewelry
Hiroshi Kitawaki, Ahmadjan Abduriyim, and Makoto Okano
 
Aquamarine, Maxixe-Type Beryl, and Hydrothermal Synthetic Blue Beryl: Analysis and Identification
Ilaria Adamo, Alessandro Pavese, Loredana Prosperi, Valeria Diella, David Ajò, G. Diego Gatta, and Christopher P. Smith
 
A New Type of Synthetic Fire Opal: Mexifire
Gagan Choudhary and Rajneesh Bhandari
 
The Color Durability of “Chocolate Pearls” by Ballerina Pearl Co.
Garry Du Toit, Andy H. Shen, and Christopher M. Breeding
 
Gota de Aceite: Nomenclature for the Finest Colombian Emeralds
Ronald Ringsrud
 
Color Variations and Properties of Johachidolite from Myanmar
Karen M. Chadwick and Christopher M. Breeding

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 2008
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
Copper-Bearing (Paraíba-type) Tourmaline from Mozambique
Brendan M. Laurs, J. C. (Hanco) Zwaan, Christopher M. Breeding, William B. (Skip) Simmons, Donna Beaton, Kenneth F. Rijsdijk, Riccardo Befi, and Alexander U. Falster
 
A History of Diamond Treatments
Thomas W. Overton and James E. Shigley
 
Natural-Color Purple Diamonds from Siberia 
Sergey V. Titkov, James E. Shigley, Christopher M. Breeding, Rimma M. Mineeva, Nikolay G. Zudin, and Aleksandr M. Sergeev

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 2008
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
Characterization of Emeralds from a Historical Deposit: Byrud (Eidsvoll), Norway
Benjamin Rondeau, Emmanuel Fritsch, Jean-Jacques Peucat, Fred Steinar Nordrum, and Lee Groat

The Use of Laser and X-ray Scanning to Create a Model of the Historic Koh-i-Noor Diamond
Scott D. Sucher and Dale P. Carriere
 
Coated Tanzanite
Shane F. McClure and Andy H. Shen
 
Coloring of Topaz by Coating and Diffusion Processes: An X-ray Photoemission Study of What Happens Beneath the Surface
Harald Gabasch, Frederik Klauser, Erminald Bertel, and Thomas Rauch

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 2008
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
Color Grading “D-to-Z” Diamonds at the GIA Laboratory
John M. King, Ron H. Geurts, Al M. Gilbertson, and James E. Shigley

Rubies and Sapphires from Winza, Central Tanzania
Dietmar Schwarz, Vincent Pardieu, John M. Saul, Karl Schmetzer, Brendan M. Laurs, Gaston Giuliani, Leo Klemm, Anna-Kathrin Malsy, Eric Erel, Christoph Hauzenberger, Garry Du Toit, Anthony E. Fallick, and Daniel Ohnenstetter

The Wittelsbach Blue
Rudolf Dröschel, Jürgen Evers, and Hans Ottomeyer
 
2008 Annual Index

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 2009
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
The French Blue and the Hope: New Data from the Discovery of a Historical Lead Cast
François Farges, Scott Sucher, Herbert Horovitz, and Jean-Marc Fourcault
 
Gray-to-Blue-to-Violet Hydrogen-Rich Diamonds from the Argyle Mine, Australia
Carolyn H. van der Bogert, Christopher P. Smith, Thomas Hainschwang, and Shane F. McClure
 
Hackmanite/Sodalite from Myanmar and Afghanistan
David Kondo and Donna Beaton
 
Solution-Generated Pink Color Surrounding Growth Tubes and Cracks in Blue to Blue-Green Copper-Bearing Tourmalines from Mozambique
John I. Koivula, Kevin Nagle, Andy Hsi-Tien Shen, and Philip Owens
 
Identification of the Endangered Pink-to-Red Stylaster Corals by Raman Spectroscopy
Stefanos Karampelas, Emmanuel Fritsch, Benjamin Rondeau, Aude Andouche, and Bernard Métivier

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 2007
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
Latest-Generation CVD-Grown Synthetic Diamonds from Apollo Diamond Inc.
Wuyi Wang, Matthew S. Hall, Kyaw Soe Moe, Joshua Tower, and Thomas M. Moses
 
Yellow Mn-rich Tourmaline from the Canary Mining Area, Zambia
Brendan M. Laurs, William B. Simmons, George R. Rossman, Eric A. Fritz, John I. Koivula, Björn Anckar, and Alexander U. Falster
 
Fluorescence Spectra of Colored Diamonds Using a Rapid, Mobile Spectrometer
Sally Eaton-Magaña, Jeffrey E. Post, Peter J. Heaney, Roy A. Walters, Christopher M. Breeding, and James E. Butler
 
An Examination of the Napoleon Diamond Necklace
Eloïse Gaillou and Jeffrey E. Post

2007 Annual Index 

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 2007
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
From Single Source to Global Free Market: The Transformation of the Cultured Pearl Industry
Russell Shor

A Study of Nail-head Spicule Inclusions in Natural Gemstones
Gagan Choudhary and Chaman Golecha

Copper-bearing Tourmalines from New Deposits in Paraíba State, Brazil
Masashi Furuya

Natural Type Ia Diamond with a Green-Yellow Color Due to Ni-Related Defects
Wuyi Wang, Matthew Hall, and Christopher M. Breeding

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 2007
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
Global Rough Diamond Production since 1870
A.J.A. (Bram) Janse

Durability Testing of Filled Emeralds
Mary L. Johnson

Continuity and Change in Chinese Freshwater Pearl Culture
Doug Fiske and Jeremy Shepherd

Yellowish Green Diopside and Tremolite from Merelani, Tanzania
Eric A. Fritz, Brendan M. Laurs, Robert T. Downs, and Gelu Costin

Polymer-Impregnated Turquoise
Kyaw Soe Moe, Thomas M. Moses, and Paul Johnson

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 2007
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
Pink to Red Coral: A Guide to Determining Origin of Color
Christopher P. Smith, Shane F. McClure, Sally Eaton-Magaña, and David M. Kondo

Serenity Coated Colored Diamonds: Detection and Durability
Andy H. Shen, Wuyi Wang, Matthew S. Hall, Steven Novak, Shane F. McClure, James E. Shigley, and Thomas M. Moses

Trapiche Tourmaline from Zambia
Thomas Hainschwang, Franck Notari, and Björn Anckar

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 2006
Our Price: $10.00

The PDF version of this issue is available at no charge. Visit www.gia.edu
The Impact of Internal Whitish and Reflective Graining on the Clarity Grading of D-to-Z Color Diamonds at the GIA Laboratory
John M. King, Thomas M. Moses, and Wuyi Wang

Identification of "Chocolate Pearls" Treated by Ballerina Pearl Co.
Wuyi Wang, Kenneth Scarratt, Akira Hyatt, Andy Hsi-Tien Shen, and Matthew Hall

"Leopard Opal": Play-of-Color Opal in Vesicular Basalt from Zimapán, Hidalgo State, Mexico
Robert Raymond Coenraads and Alfonso Rosas Zenil

The Cause of Iridescence in Rainbow Andradite from Nara, Japan
Thomas Hainschwang and Franck Notari

2006 Annual Index

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.