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Gem Trade Lab Notes JOURNAL ARTICLE published 1 April 1982 in Gems & Gemology |
Gem News JOURNAL ARTICLE published 1 September 1994 in Gems & Gemology |
An Update on Imperial Topaz from the Capão Mine, Minas Gerais, Brazil JOURNAL ARTICLE published 1 January 1996 in Gems & Gemology |
Update on Gemstone Mining in Northern Mozambique JOURNAL ARTICLE published 1 February 2017 in Gems & Gemology |
New Chromium- and Vanadium-Bearing Garnets from Tranoroa, Madagascar JOURNAL ARTICLE published 1 June 2002 in Gems & Gemology |
Rough Diamond Auctions: Sweeping Changes in Pricing and Distribution JOURNAL ARTICLE published 1 February 2015 in Gems & Gemology |
The Rutilated Topaz Misnomer JOURNAL ARTICLE published 1 June 1987 in Gems & Gemology |
Congratulations! JOURNAL ARTICLE published 1 September 1989 in Gems & Gemology |
Gem News International JOURNAL ARTICLE published 1 September 2007 in Gems & Gemology |
New Beginnings JOURNAL ARTICLE published 1 September 2011 in Gems & Gemology |
Modeling the Appearance of the Round Brilliant Cut Diamond: An Analysis of Fire, and More About Brilliance JOURNAL ARTICLE published 1 September 2001 in Gems & Gemology |
The Capoeirana Emerald Deposit Near Nova Era, Minas Gerais, Brazil JOURNAL ARTICLE published 1 September 1989 in Gems & Gemology |
Gia's Symmetry Grading Boundaries For Round Brilliant Cut Diamonds JOURNAL ARTICLE published 1 December 2011 in Gems & Gemology |
Symposium: Meeting the Millennium JOURNAL ARTICLE published 1 September 1997 in Gems & Gemology |
A Visual Guide to the Identification of Filled Diamonds JOURNAL ARTICLE published 1 June 1995 in Gems & Gemology |
Gem News International JOURNAL ARTICLE published 1 June 2005 in Gems & Gemology |
Gem News International JOURNAL ARTICLE published 1 December 2010 in Gems & Gemology |
Book Reviews JOURNAL ARTICLE published 1 January 1987 in Gems & Gemology |
Gemological Abstracts JOURNAL ARTICLE published 1 July 1983 in Gems & Gemology |
Remembering Gemology's Renaissance Man: John Sinkankas (1915-2002) JOURNAL ARTICLE published 1 June 2002 in Gems & Gemology |