The stone, made of black Belgian marble, sits in the King George VI Memorial Chapel which Queen Elizabeth commissioned in 1962 as a burial place for George VI, her father. The queen was interred there on Monday after a state funeral in Westminister Abbey.
The brass lettering on the stone reads "George VI 1895-1952 / Elizabeth 1900-2002" on the top two lines, followed by a garter star and then "Elizabeth II 1926-2022 / Philip 1921-2021" on the bottom two lines.
Queen Elizabeth's sister, Princess Margaret, is also interred at the chapel, at Windsor Castle west of London.
Elizabeth died on Sept. 8 at Balmoral Castle, her summer home in the Scottish highlands, after 70 years on the throne. Her son Charles has become king.
(Reporting by Andy Bruce; Editing by Frances Kerry)