Untitled Page - Gem Lab Alert: Lead Glass Impregnated Ruby in U.S.

(Rapaport…July 6, 2004) A new ruby treatment has been seen in the United States, the American Gem Trade Association has reported, after it tested a 16-carat ruby treated by a glass-filling process which does not use heat.

http://www.diamonds.net/News/ExportItem.aspx?ArticleID=9920&Action=Print

Glass-Filled Fractures in Ruby—Like Diamond

News  |  www.jckonline.com | Nov 1, 2004

The Sept. 3 edition of the Gübelin Gem Lab (GGL) newsletter announced that lead-filled rubies were entering the market. According to the newsletter, The clarity enhancement of ruby with a lead-based filler might now be considered noted in heat-treated rubies. Heat-treated rubies filled with a

http://www.jckonline.com/article/CA476819.html

Gemology, Mineral and Jewelry Links

American Gem Trade Association Gemological Testing Center – The foremost colored gem testing lab in America and home to Ruby-Sapphire.com's Richard W. Hughes. Sign up for their regular gemology updates.

http://www.ruby-sapphire.com/links.htm

Rubies With Glass Treatment Seen

The American Gem Trade Association's Gem Testing Center warns the trade to be aware of a glass treatment in rubies. AGTA-GTC received a 16-ct. ruby at its New York laboratory in June which had been treated by this method, suggesting a new form of glass-filled rubies might be entering the trade.

http://www.professionaljeweler.com/archives/news/2004/070704story.html

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