Plans for the St James's Park memorial are unveiled on what would have been the late Queen's 100th birthday.
Tickets will be available for tours of St James's Palace in April and May at a cost of £85.
Anastasija Grigorjeva was left in intensive care after she was shocked by a suspected live wire.
The project will aim to create "an emotionally powerful place", with celebratory spaces as well as areas to encourage reflection, and a standalone monument.
The stone, weighing 312.24 carats, is in an exhibition celebrating artist Wallace Chan's career.
She takes over from Sir Tim Rice as the president of a library that counts Charles Dickens as a founding member.
England's chief medical officer was accosted by two men in a London park in June 2021.
Visitors are being urged not to feed or touch wildlife in the wake of a person catching the disease.
Restrictions mean the traditional parade will be replaced by an arena show in London's West End.
