Plans for Camilla, the Queen Consort, to be crowned at King Charles III's coronation using a controversial diamond may be abandoned due to "political sensitivities".
The Koh-i-Noor diamond has been worn by previous consorts such as Queen Alexandra and Queen Mary.
It was last worn by the Queen Mother in 1937.
However, India's ruling Bharatiya Janata Party has warned the move would bring back "painful memories of the colonial past".
On Wednesday night (local time), royal sources insisted no decision on the Koh-i-Noor diamond had yet been made but added the King and his team were "acutely aware" of the need to consider current sensitivities.
"Times have changed and His Majesty The King is acutely sensitive to these issues, as are his advisors. There are serious political sensitivities and significant nervousness around them, particularly regarding India," a source told the Daily Mail.
The Queen Consort will be crowned alongside the King at Westminster Abbey on May 6.
Queen Elizabeth wore the crown without its arches at the State Openings of Parliament during the reign of King George VI, and again at the coronation of her daughter, Queen Elizabeth II, in 1953.
The diamond was "acquired" by Britain in 1849.
It was given to Queen Victoria in 1855 by 10 year-old Duleep Singh, last emperor of the Sikhs.
Since then the diamond has become a part of the Queen's Crown Jewels, but its controversial inclusion has been a point of dispute between India and Britain.
Political commentator Saurav Dutt told the Mail any inclusion of the diamond in the upcoming event could potentially be damaging.
"Ensuring the Koh-i-Noor remains front and centre in the public eye in this way flies in the face of any attempt by the Royal Family and political orthodoxies to draw a line under the dispossession, prejudice, plunder and exploitation that imperialism revelled in."
