New York City Mayor Zohran Mamdani is facing backlash after he suggested that King Charles III return the Koh-i-Noor diamond during a wreath-laying ceremony at the 9/11 Memorial. Critics, including the New York Post Editorial Board, described his comments as 'rude' and indicative of a lack of maturity. Mamdani had stated he would encourage the king to return the diamond, which has a complex history tied to colonialism. The editorial emphasized that his remarks overshadowed the significance of the event meant to honor the victims of the September 11 attacks. King Charles III and Queen Camilla visited the memorial as part of their trip to New York City, which also included stops at Harlem Grown, an urban farming initiative. The Koh-i-Noor diamond, currently displayed at the Tower of London, was given to Queen Victoria in 1849 and has been a point of contention regarding its rightful ownership, with India expressing interest in its return.