The second Edition of TREASURES, the award-winning international colloquium, now under the theme CROWNS and TIARAS, will take place at the Royal Treasure Museum, Palácio Nacional da Ajuda, in Lisboa, Portugal, from 13-14 November 2026.
In this exciting edition delegates will enjoy two full days of keynote addresses and discussion panels offered by research fellows, history, jewellery and gem experts from major world museums, collections and institutes where royal and imperial crowns, diamond tiaras, and gem-set hat and hair jewels are the protagonists. Delegates will have, at all times, exclusive access to the Portuguese Royal collections that will be closed to the public.
​An evocation of the 200 years of the exequys of king D. João VI of Braganza Dynasty in Portugal will be also a central aspect of the colloquium, notably the Royal Crown that was made in Brazil for his acclamation as king in 1818.
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The famous Portuguese hospitality will be also deeply expressed in the unique catering experience of the coffee breaks and lunch breaks, as well as in the Gala Dinner that was one of the highlights of the first edition at the Royal Palace.
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Due to the high demand for pre- and post- colloquium activities, a significant plethora of both cultural and jewellery-related tours will be offered this time, to make even more memorable the experience of the delegates in Lisbon.
Rui Galopim de Carvalho
TREASURES Master of Ceremonies and Program Chair Royal Treasure Museum
ABOUT
An Award Winner Colloquium,
In a World-Class Venue - the Internationally Awarded Royal Treasure Museum,
with World-Renowned Speakers
talking about Royal Crowns and Tiaras,
topped with luxury side events.
A two-day program of keynote addresses and discussion panels offered by research fellows, history, jewellery and gem experts from major world museums, collections and institutes where royal and imperial crowns, diamond tiaras, and gem-set hat and hair jewels are the protagonists. The program is enriched with a very rare opportunity to enjoy a Gala Dinner at a royal setting. Delegates will have, at all times, exclusive access to the Portuguese Royal collections that will be closed to the public, besides opportunities to visit the former Royal Residence of the Portuguese Crown.
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Due to the high demand for pre- and post- colloquium activities, a significant plethora of both cultural and jewellery-related tours will be offered this time, to make even more memorable the experience of the delegates in Lisbon. Please check the Tours & Hotels section for further information. And do not miss the opportunity to check our suggested hotels with special rates for all the delegates.
SOLEMN OPENING SESSION
in order of appearance
António
Valle
Managing Director
Lisbon Tourism
​
Lisbon, Portugal
José Alberto Ribeiro
Director
Ajuda National Palace
Lisbon, Portugal
Bénédicte
Épinay
President
ECCIA
​
Paris. France
H.H. the Lady Infanta D. Maria Francisca de Bragança, Duchess of Coimbra
​​​Lisbon, Portugal
SPEAKERS
in order of appearance
​José Alberto Ribeiro
Director
Ajuda National Palace
​​​​
​​​​​
​
Lisbon, Portugal
Akitsugu
Sato
Collection Manager
Swiss Gemmological Institute ​​
​
​
Basel, Switzerland
Linda
Borsch
Conservator
The MET
​
​
New York, USA
Cristina
Filipe
Artist, Researcher, Curator
Centre for Research in Science and Technology of the Arts, Catholic University of Porto
​
Lisboa, Portugal
Eduardo
Alves Marques
Researcher and Author
​​
​​​
Lisbon, Portugal
Maurício Vicente Ferreira Junior
Director
Brasil Imperial Museum
​​
​​
Rio de Janeiro, Brasil
Miguel
Cabral Moncada
Managing Partner
Cabral Moncada Auction House
​​
​
Lisbon, Portugal
Matthew
Cumbie
Conservator
The MET
​​
​​​
​
New York, USA
Kazumi
Arikawa
President
Albion Art Jewellery Institute and Albion Art Co
​
Lisboa, Portugal
Gabrielle
de Montmorin
Historian and Journalist
Paris, France
Hugo
Miguel Crespo
Researcher
School of Arts and Humanities
University of Lisbon
​
Lisbon, Portugal
Nuno
Vale
Executive Director
Royal Treasure Museum
​
​
Lisbon, Portugal
Teresa
Maranhas
Jewellery Conservator
Ajuda National Palace
​
​​​​​
Lisbon, Portugal
Odile
Emanuelli
Director
​Paris Salon Albion Art Collection
​
Paris, France
H. Albert
Gilg
Chair of Engineering Geology
Technical University of Munich
​​​
Munich, Germany
Suzanne
van Leeuwen
Curator and Conservator of Jewellery
Rijksmuseum
​
Amsterdam, Netherlands
Miguel
Metelo de Seixas
Research and Professor
Institute for Medieval Studies, FCSH/NOVA
​
​​​Lisboa, Portugal
Ellen
van Bork
Metals Conservator
Rijksmuseum
​
Amsterdam, Netherlands
©Léa Crespi
RUI GALOPIM DE CARVALHO
TREASURES Master of Ceremonies & Program Chair
Royal Treasure Museum
Rui Galopim de Carvalho FGA DGA is an independent Gem Education Consultant, author, training expert and popular international lecturer on gemmology and on the history of gem materials. During his 30 year experience as a gemmologist Rui has studied important collections in both public and private museums, notably the Portuguese Crown Jewels. Founder of the popular Home Gemmology webinar series launched during the COVID-19 lockdown, Rui has a long history as a gemmology communicator, notably on social media where he is a popular figure. As an educator, he has developed training projects for luxury brands and for international bodies in the UK, Mozambique, Brazil and Portugal where he has been teaching jewellers, designers and valuers for decades. He is associate editor of Gem-A’s Journal of Gemmology, Vice-President of the Coral Commission of The World Jewellery Confederation - CIBJO, member of the Communications Committee of ICA (International Colored Gemstone Association), ambassador for LAUREL - Portuguese Association of Excellence Brands (ECCIA member) and consultant for several private collections and trade organisations, being member of numerous gemmological and trade organisations.
SPONSORS
ROYAL TREASURE PARTNER
INTERNATIONAL PARTNERS
INSTITUTIONAL PARTNERS
OFFICIAL SUPPLIERS
