Meet the author

Encounter of L’Escarboucle on the book "Colombian Emeralds"

Livre Emeraude Colombienne

Discover more about the origins of this iconic gem.

Meet Guilhem Merolle and Geoffray Riondet, the authors of "Colombian Emerald" and take an in-depth look at this iconic gem, from its origins in the pre-colombian civilization to the history of the Chivor mine exploitation, 

Encounter of L’Escarboucle (in French):

Thursday, November 26th, 2026
6 p.m. - 7 p.m.
InterContinental Lyon - Hotel Dieu
20 Quai Jules Courmont, 69002 Lyon