Lecture • A Canary in the Ruby Mine • Tokyo • 26 October 2023
Low-temperature heat treatment experiments on Burmese ruby.
Lecture • A Canary in the Ruby Mine • Tucson • 31 January 2024
Billie Hughes & Wim Vertriest report the results from their low-temperature heat treatment experiments on Burmese ruby.
Lecture • A Canary in the Ruby Mine • Bangkok • 9 September 2023
Billie Hughes & Wim Vertriest report the results from their low-temperature heat treatment experiments on Burmese ruby.
Lecture • Inside Out • Journey into the Center of a Gem • Tokyo • 2 March 2023
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.
Lecture • Earth's Time Capsule: Inclusions in Colored Gemstones and Diamonds • Bangkok • 20 February 2023
Billie Hughes and Olivier Segura discuss inclusions in colored gemstones and diamonds at an Evening Conversation for Van Cleef & Arpels.
Lecture • The Mystery of Inclusions: A Panel Discussion • Tucson • 4 February 2023
A discussion about the importance of inclusions and photomicrography.
Lecture • Jade: China's Gift to the World • Tucson • 29 January 2023
Richard Hughes examines the historical sources of jade, along with the remarkable renaissance in Chinese jade carving that has occured since the 1990s.
Lecture • Greasy Business • Oiled Gems Fraud • Taipei • 18 March 2023
Greasy Business • The Ongoing Fraud of Oiled Gems
Lecture • Greasy Business • Oiled Gems Fraud • Tucson • 1 February 2024
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.
Lecture • Jade: A Workshop • Tucson • 1 February 2023
Hands-on workshop looking at different types of jade.
Lecture • Jade: A Workshop • Tucson • 28 January 2024
Hands-on workshop looking at different types of jade.
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.