INTERNATIONAL SOCIETY OF APPRAISERS ANNUAL CONFERENCE, HOUSTON, MARCH 2023
COLOMBIA JANUARY 2023
https://commons.wikimedia.org/wiki/File:Larisa_Popova_Gems-Expertise_Petra.jpg
https://commons.wikimedia.org/wiki/File:Larisa_Popova_Gems_Expertise_Colombian_Emeralds.jpg
https://commons.wikimedia.org/wiki/File:Larisa_Popova_Gems-Expertise_Emerald_Museum.jpg
https://commons.wikimedia.org/wiki/File:Larisa_Popova_Gems-Expertise_Emerald_Polishers.jpg
https://commons.wikimedia.org/wiki/File:Larisa_Popova_Gems-Expertise_Gartagena.jpg
COLOMBIA JUNE 2022
ROUGH STONES EVALUATION
https://robbreport.com/lifestyle/news/queen-of-asia-blue-sapphire-1234654079/
https://www.percymarks.com.au/the-worlds-largest-emerald/
MACEDONIA
https://es.wikipedia.org/wiki/Francisco_de_Paula_(santo)
https://www.britannica.com/topic/Ganesha
Sotheby’s London auction house
February 2022, auction for the 555.55 carat Natural Black diamond.
NORTH AFRICA 2011
