According to a press release issued by the Brazilian government, an Operation led by its Federal Police dismantled an international criminal organisation involved in the illegal extraction, trade, and export of precious stones, particularly rough diamonds and gold. On April 26, 2023, Brazil's Federal Police launched Operation Itamarã, which encompassed a total of 42 search and seizure warrants and eight preventive arrest warrants across several Brazilian states and involved international cooperation with the United States, Belgium, England, and the United Arab Emirates. Investigations began in 2020, as the organisation's activities were first revealed through the arrest of a suspect at Guarulhos International Airport. The suspect was found carrying rough diamonds without proper documentation. Subsequent seizures included gold bars at Confins/MG Airport and rough diamonds intercepted with the help of U.S. Homeland Security Investigations. The Operation eventually uncovered that the criminal organisation had extensive operations in over a dozen countries, involving complex financial schemes and the use of shell companies to issue false invoices. They also co-opted legitimate companies to facilitate the illegal export of precious stones.