Lectures

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

Lotus Gemology's E. Billie Hughes will review the major treatments of ruby and sapphire and how they can be identified.

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.

Greasy Business • The Ongoing Fraud of Oiled Gems

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

Hands-on workshop looking at different types of jade, including both nephrite and fei cui.

Low-temperature heat treatment experiments on Burmese ruby.

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

Meet the Extraordinary 40 • Richard Hughes Honored by Jewellery News Asia

Greasy Business • The Ongoing Fraud of Oiled Gems

Billie Hughes and Olivier Segura discuss inclusions in colored gemstones and diamonds at an Evening Conversation for L'École School of Jewelry Arts, Van Cleef & Arpels.

Billie Hughes and Olivier Segura discuss inclusions in colored gemstones and diamonds at an Evening Conversation for Van Cleef & Arpels.

A discussion about the importance of inclusions and photomicrography.