TreatmentsConsensus reached on gem treatment disclosuresIn what is being called an "unprecedented cooperative effort," three major organizations that represent the colored gemstone industry worldwide have adopted a uniform set of codes that will be used within the trade to describe gemstone treatments. Read More Glass-filled rubies appear in investigative reportA TV news report claiming that lead-glass filled rubies were sold without proper disclosure at Macy's stores aired earlier this week on the West Coast, marking at least the second time that the stones made consumer news headlines. Read More AGA giving retailers scoop on composite rubiesNew York--In response to a recent Good Morning America news segment that revealed glass-filled "composite rubies" being sold without proper disclosure, the Accredited Gemologists Association (AGA) is offering retailers information on how to identify and care for the treated stones. 
AGL modifies heated-ruby disclosure wordingNew York--American Gemological Laboratories (AGL) is modifying the disclosure terminology it uses for treated rubies by exchanging the term "inorganic (fluxtype)" with "heating residues" in its descriptions of heat-treated rubies, the lab announced. Read More 
How do you heat-treat sapphires with beryllium?Gemology expert Mary Johnson gets into the nitty-gritty of some common colored-gemstone treatments. Read More Pearl Commission votes 'no' on 'cultured' diamondsDubai, United Arab Emirates--The CIBJO Pearl Commission has voted on a number of amendments to the Pearl Blue Book, a definitive set of standards for pearl grading, methodology and nomenclature that the commission has updated each year since the guide's publication in 2006. Read More |
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