Ceylon (Sri Lankan) sapphire often has this reaction under longwave ultraviolet light. There is no negative influence under normal lighting conditions.Date: 4/10/2007 5:29:31 PM
Author: part gypsy
It is labeled as a ceylon sapphire, disclosed as heat treated, but was curious if this signified some kind of treatment other than heat, and I guess also if ''lw medium red'' had any adverse effect on its visual appearance. I''ve heard of rubies having red flouresence, but not blue sapphires.