Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha

JOURNAL ARTICLE published 1 January 1989 in Gems & Gemology

Authors: Robert E. Kane | Robert C. Kammerling | Rhyna Moldes | John I. Koivula | Shane F. McClure | Christopher P. Smith

Observations on HPHT-Grown Synthetic Diamonds: A Review

JOURNAL ARTICLE published 1 November 2017 in Gems & Gemology

Authors: Sally Eaton-Magana | James E. Shigley | Christopher M. Breeding

The Radioactive Decay Pattern of Blue Topaz Treated by Neutron Irradiation

JOURNAL ARTICLE published 1 December 2011 in Gems & Gemology

Authors: Jian Zhang | Taijin Lu | Manjun Wang | Hua Chen

Blue Spinel from the Luc Yen District of Vietnam

JOURNAL ARTICLE published 1 May 2015 in Gems & Gemology

Authors: Boris Chauvire | Benjamine Rondeau | Emmanuel Fritsch | Phillipe Ressigeac | Jean-Luc Devidal

Spectral Characteristics of Natural-Color Saltwater Cultured Pearls from <i>Pinctada Maxima</i>

JOURNAL ARTICLE published 1 September 2012 in Gems &amp; Gemology

Authors: Stefanos Karampelas

Chrysoberyl and Alexandrite from the Pegmatite Districts of Minas Gerais, Brazil

JOURNAL ARTICLE published 1 April 1988 in Gems &amp; Gemology

Authors: Keith Proctor

Ruby and Sapphire from Jegdalek, Afghanistan

JOURNAL ARTICLE published 1 June 2000 in Gems &amp; Gemology

Authors: Gary W. Bowersox | Eugene E. Foord | Brendan M. Laurs | James E. Shigley | Christopher P. Smith

Field Gemology: Building a Research Collection and Understanding the Development of Gem Deposits

JOURNAL ARTICLE published 1 February 2019 in Gems &amp; Gemology

Authors: Wim Vertriest | Aaron C. Palke | Nathan D. Renfro

Gem-Quality Cuprian-Elbaite Tourmalines From São José Da Batalha, Paraíba, Brazil

JOURNAL ARTICLE published 1 September 1990 in Gems &amp; Gemology

Authors: Emmanuel Fritsch | James E. Shigley | George R. Rossman | Meredith E. Mercer | Sam M. Muhlmeister | Mike Moon

The Gemological Properties of Russian Gem-Quality Synthetic Yellow Diamonds

JOURNAL ARTICLE published 1 January 1993 in Gems &amp; Gemology

Authors: James E. Shigley | Emmanuel Fritsch | John I. Koivula | Nikolai V. Sobolev | Igor Y. Malinovsky | Yuri N. Pal'yanov

From Single Source to Global Free Market: the Transformation of the Cultured Pearl Industry

JOURNAL ARTICLE published 1 September 2007 in Gems &amp; Gemology

Authors: Russell Shor

Cultured Abalone Blister Pearls from New Zealand

JOURNAL ARTICLE published 1 September 1998 in Gems &amp; Gemology

Authors: Cheryl Y. Wentzell

The Wittelsbach Blue

JOURNAL ARTICLE published 1 January 2008 in Gems &amp; Gemology

Authors: Rudolf Dröschel | Jürgen Evers | Hans Ottomeyer

Two Treated-Color Synthetic Red Diamonds Seen in the Trade

JOURNAL ARTICLE published 1 September 1993 in Gems &amp; Gemology

Authors: Thomas M. Moses | Ilene Reinitz | Emmanuel Fritsch | James E. Shigley

Rubies from Mong Hsu

JOURNAL ARTICLE published 1 April 1995 in Gems &amp; Gemology

Authors: Adolf Peretti | Karl Schmetzer | Heinz-Jürgen Bernhardt | Fred Mouawad

Auction Houses: A Powerful Market Influence on Major Diamonds and Colored Gemstones

JOURNAL ARTICLE published 1 May 2013 in Gems &amp; Gemology

Authors: Russell Shor

A Decade of Ruby from Mozambique: A Review

JOURNAL ARTICLE published 1 August 2019 in Gems &amp; Gemology

Authors: Wim Vertriest | Sudarat Saeseaw

Gemstone Enhancement and Detection in the 1990s

JOURNAL ARTICLE published 1 January 2000 in Gems &amp; Gemology

Authors: Shane F. McClure | Christopher P. Smith

Fluorescence Produced by Optical Defects in Diamond: Measurement, Characterization, and Challenges

JOURNAL ARTICLE published 1 August 2013 in Gems &amp; Gemology

Authors: Yun Luo | Christopher M. Breeding

Gem-Quality Synthetic Diamonds Grown by a Chemical Vapor Deposition (CVD) Method

JOURNAL ARTICLE published 1 January 2003 in Gems &amp; Gemology

Authors: Wuyi Wang | Thomas Moses | Robert C. Linares | James E. Shigley | Matthew Hall | James E. Butler