King Charles III's recent visit to the United States has sparked discussions about the Kohinoor diamond, a crown jewel with a contentious history. Activist Mamdani has expressed intentions to confront the king, advocating for the return of the controversial gem to India.

Despite a lavish welcome, including a dinner on a gold plate, the visit has been marked by calls for reparative actions regarding historical artifacts, with the Kohinoor diamond at the forefront of this debate.