Billie Hughes reports the results from our low-temperature heat treatment experiments on Burmese ruby, with Japanese translation by Masaki Furuya.
A Canary in the Ruby Mine: Low-Temperature Heat Treatment Experiments on Burmese Ruby
by Lotus Gemology's Billie Hughes with Japanese translation by Masaki Furuya
One of the challenges facing gemologists today is the rise of low temperature heat treatment in ruby and sapphire. We have conducted heat treatment experiments on Burmese ruby to record changes that can aid gemologists in treatment detection. In this talk, Billie Hughes will share the data from these experiments, including before-and-after photomicrographs, spectroscopy, and fluorescence results.
When
Wednesday, 5 November, 2025, 4:00 PM
Where
Tokyo, Japan