Pakistan, April 30 -- New York City Mayor Zohran Mamdani has publicly called on Britain's King Charles III to support the return of the Koh-i-Noor diamond, reviving a long-standing debate over the ownership of one of the world's most famous jewels.

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Mamdani made the remarks on Wednesday during King Charles and Queen Camilla's visit to New York, where the royal couple attended an event at the 9/11 Memorial as part of the monarch's state visit to the United States. Before greeting the British monarch, Mamdani was asked what he would discuss with the king if given the opportunity.

In response, the mayor said he would encourage King Charles to return the Koh-i-Noor diamond, ...