Richard Hughes examines the nomenclature of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Billie Hughes and Olivier Segura take the audience on a journey through the world of rubies.

Billie Hughes, Thierry Ardouin, and Olivier Segura discuss the intersection between photography, art, science, and nature.

Billie Hughes & Wim Vertriest report the results from their low-temperature heat treatment experiments on Burmese ruby.

Richard Hughes examines the historical sources of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Richard Hughes examines the historical sources of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Richard Hughes examines the historical sources of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Lotus Gemology's E. Billie Hughes will captain a special workshop devoted to gemological microscopy and photomicrography.

Plunge into the fascinating microworld of ruby and sapphire with award-winning photomicrographer E. Billie Hughes.

Lotus Gemology's E. Billie Hughes looks at the important sapphire producing localities in Madagascar, along with the key gemological features that can help separate them from other sapphire sources.

Richard Hughes examines the historical sources of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Richard Hughes examines the historical sources of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Richard Hughes examines the historical sources of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Richard Hughes examines the historical sources of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.

Lotus Gemology's gemologists have lectured extensively about a wide variety of gemological topics including ruby, sapphire, jade, and more.