New Ruby Classification - Ruby and Glass
November 14, 2014 by admin.

If a ruby has been filled with glass, CIBJO’s Coloured Stone Commission has made it clear in the report that they released that the gemstone cannot be classified as a ruby, but rather needs to be classified as "Ruby and Glass".

Additionally, the description for the gemstone would change to "manufactured/composite material or product", the Coloured Stone Commission president stated at the 2013 CIBJO Congress.

For this new classification to fit within current gem terminology, the meaning of the word "composite" in the CIBJO's Gemstone Book also had to be altered. Now, the meaning of composite is: "artificial products composed of two or more parts or layers assembled by bonding or other artificial methods. Their components may be natural and/or artificial".

It doesn't matter whether the ruby is made of more glass and less ruby or more ruby and less glass. If the ruby includes any glass, this new classification is supposed to be disclosed. This new classification is also going to be applied to sapphires.

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