01
Oct
-
Posted by Richard W. Hughes
A short autobiography of Richard Hughes' life in gems and gemology. From the introduction to his 2017 book, Ruby & Sapphire: A Gemologist's Guide.
23
Apr
-
Posted by Richard Hughes
An essay on how gemology, in focusing solely on analysis, has lost sight of the most important part of a gem – its beauty.
01
Jan
-
Posted by Thanong Leelawatanasuk, Wilawan Atitchat, Visut Pisutha-Arnond, Pornsawat Wattanakul, Papawarin Ounorn, Wimon Manorotkul & Richard W. Hughes
The history of glass-infilling in blue sapphire, along with a description of the latest treatment generation developed in Chanthaburi, Thailand.
15
Jun
-
Posted by Richard Hughes
A discussion of the definition of padparadscha sapphire, from early to modern times, along with the difficulty in standardizing such definitions.
01
Oct
-
Posted by Richard W. Hughes with E. Billie Hughes, Wimon Manorotkul & Dana Schorr
The mining of natural red andesine in Tibet has been a subject of controversy. This article describes RWH's second visit to the Tibetan deposit.