1 October 2016 Oct
By Richard W. Hughes
Richard W. Hughes • Something of Myself

A short autobiography of Richard Hughes' life in gems and gemology. From the introduction to his 2017 book, Ruby & Sapphire: A Gemologist's Guide.

Read More
23 April 2014 Apr
By Richard Hughes
People & Places • New Directions in Gemology • Reconstructive Gemology

An essay on how gemology, in focusing solely on analysis, has lost sight of the most important part of a gem – its beauty.

Read More
1 January 2013 Jan
By Thanong Leelawatanasuk, Wilawan Atitchat, Visut Pisutha-Arnond, Pornsawat Wattanakul, Papawarin Ounorn, Wimon Manorotkul & Richard W. Hughes
Cobalt-Doped Glass-Filled Sapphire • Gem Treatment

The history of glass-infilling in blue sapphire, along with a description of the latest treatment generation developed in Chanthaburi, Thailand.

Read More
15 June 2013 Jun
By Richard Hughes
Padparadscha Sapphire from Sri Lanka • A History

A discussion of the definition of padparadscha sapphire, from early to modern times, along with the difficulty in standardizing such definitions.

Read More
1 October 2012 Oct
By Richard W. Hughes with E. Billie Hughes, Wimon Manorotkul & Dana Schorr
In Search of the Lost Andesine Mines  •  Part II  •  Faith

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.

Read More
Back to top