Glass-Filled Rubies Update

According to AnchorCert gemologists at the Birmingham Assay Office in the U.K, a large number of glass filled rubies have entered the market without proper disclosure. These rubies in their natural form are poor quality corundum and are subjected to bleaching to remove dark patches of color, but this also affects their structure making them brittle and unstable.  If doubtful always consult a reputed gem testing laboratory. www.anchorcert.co.uk