Gemology World - Can. Institute of Gemmology

THE NEWS BULLETIN

The following links are provided to allow gemmologists and the general public keep up-to-date with developments in the industry. Copyright and content responsibility remain with the linked organization and do not represent any endorsement or opinion of the Canadian Institute of Gemmology.

CIGem News Sign up (click on the edition you want to read): August 2008

- September 2008

/ html- October 2008

/ html - November 2008

/ html - December 2008

/ html - Winter 2009

/ html - Special GIT2008 edition

/ html - Spring 2009

/ html - Summer 2009 html - Fall 2009 html - Winter 2010 html - Spring 2010 html - Summer 2010 html

Laboratory Alerts and News - older Lab News have been filed HERE (a new webpage opens)

Treatments and other gemmological news

Macy’s sells rubies ‘filled’ with glass, SF Public Press (July 13, 2010)
GIA News from Research - (May 11, 2010)
Sinkankas Symposium Report - from the ISG (April 22, 2010)
GIA Special Issue on Red Feldspar - (Sept. 2009)
New Gemstone Treatments - A Coming Crisis by Joel Arem, Colored Stone Magazine (June 5, 2009)

The Appraiser's Corner - on-line reference guide for gem identification - go HERE (a new webpage opens)

ISG: Andesine Insurance Issues and Answers! - Jewelry Adjuster (April 2010)

Honor Thy Father: Louisville Gem Dealer Acquitted of Charges in Estate Jewelry Case - From Colored Stone Magazine (July 2009)

Stick to the facts on appraisals - From National Jeweler Network

Gemstone News

The Diamond Guru The Diamond Guru Anthology & Insight Blog
The Gringa News Blogspot - Gemstone News
From National Gemstone: The Gemstone Forecaster Newsletters Spring 2010
California Appeals Court rules in favor of the anti-Slapp motion in the DSN -v- Interweave (Colored Stone) law suit over Andesine; read here. or document. (May 17, 2010)
Class action suit (trial date has been set for October 18, 2010) against Direct Shopping Network (DSN) over Andesine (Nov. 5, 2008); read claim here.
DirectTV files temporary injunction against Gems USA after restraining order of March 23 and order for GemsTV to appear before the courts; see document
Jewelry Television (JTV) makes Statement on Andesine-Labradorite (Nov. 12, 2008); View/Download missing lab reports from here.
Amended Complaint for False Advertising Yehuda vs Blue Nile (January 17, 2009)

GIT 2008 2nd International Gem & Jewelry Conference, Bangkok, Thailand, March 9 - 12, 2009

UV LEDs in Gem Identification, presented by Wolf Kuehn, Director of Education, C.I.G. View/Download poster View/Download/View PDF 102 Kb

Adamas Gemological Laboratory - the home of the SAS2000 Spectrophotometer Analysis System

Reports on Lead Glass Filled Rubies

Composite rubies: What jewelers need to disclose, National Jeweler - (March 26, 2010)
Good Morning America on Are Your Rubies the Real Deal? - ABC News - (November 4, 2009)
More about this subject in CIGem News Spring 2009
also read: X-Gems: the rise of the mutant mineral , Colored Stone (February, 2008)

Reports on the Paraiba Tourmaline issue

The dyefusion of blue tourmaline! from the ISG (November 23, 2009)
ISG response to GemWise blog and comments Epochal Crisis, Part II (May 20, 2009)
Inclusion Research Case Study of a Copper-Bearing Tourmaline from Mozambique - from GemResearch Swisslab (May 12, 2009)
An evaluation of the source of red halo growth tubes in tourmaline from ISG (April 30, 2009)
ISG response to lateritic soil as an explanation for anomalous tourmaline reactions by Johnson AGTA ePrism March 09 (April 14, 2009)
Pink in Tourmalines from Natural Irradiation from JCK Talkback. (January 28, 2009)
A Dark Hour for Gemology: The Diffusion Debacle - by David Federman, Colored Stone (January 27, 2009)
Observations on Mozambique paraiba tourmaline by Joseph I Swezda. National Jeweler. (January 8, 2009)
Paraiba Follow-up from Palagems
Paraiba Tourmaline Controversy
A lawsuit over a name .......
Consumer Awareness Forum - International School of Gemology

Reports on the Andesine/Labradorite issue

The ISG Raman Story (May 19, 2010)
Andesine: The Final Chapter from the ISG (April 7, 2010)
RE: David Federman, Jewelers Ethics Association Industry News , Vol. 2, No. 4 Comments from Gringa-Gem-News Blog (April 21, 2010)
Beware of Fakes and Imitations (Oct. 8) and The continuing mystery of the Tibet andesine mine! from the ISG (September 22, 2009)
Joel Arem's report on Robert James Tucson Seminar and follow-up. Colored Stone Magazine (Feb.25, March 11, 2009)
Everything about Oregon Sunstone - Welcome to Plush Sunstone
The Mexican Connection - from ISG (May 12, 2009)
Dr. Rossman Speaks on Andesine - from ISG (May 7, 2009); ongoing discussion on Gemology Online Forum and ISG Student Forum Board
Colored Stone Magazine: Andesine Report- How the fraud was discovered
From Pala International Gem News November 2008 Andesine Answers (Nov. 20)
Andesine found in Tibet: Gembusters Discussion Forum,(Nov. 19)
JCK Web Exclusive: The Andesine Report (Nov. 13); read here.
From ColoredStone Magazine: The Hunt for Red Sunstone is Bigger than Ever
Colored Stone Magazine: The Furor Over Feldspar - the Story about Oregon Sunstone
The Jewelcutter:The Great Andesine Scam
Ask Jeff: Andesine? Labradorite? What is it? Value and marketing issues...RIP Jeff
Andesine Update - From Gary Roskin: JCK Voices

United States Patents regarding colour enhancement and treatments of gemstones; makes interesting reading!

Patent No. 6,635,309 B2 - Process for the color Enhancement of Gemstones
Patent No. 5,888,918 - Method for Enhancing the Color of Minerals Useful as Gemstones
Patent No. 7,033,640 - Method of Coloring Cut Gemstones
Patent No. 6,527,854 - Method for contact diffusion of impurities into diamond and other crystalline structures and products

All A.G. (C.I.G.) diploma holders have access to our laboratory services. Through Gemlab Research and Technology (GLR&T, our internal lab facility) we are able to assist you in state-of-the art gem identification.

Tucson Gem Show 2009 - a report from Jeff (Feb. 12, 2009)

Pricescope Review of the new GIA Diamond Grading System.

Pricescope Discussion Groups of Diamond Grading Systems.

Martin Haske's 3D Ray Trace Study viceversa GIA's Brilliance Study View/Download, 56 pages View/Download/View PDF

1.5 MB

Market Report 9/97