Queen Elizabeth at the Sapphire Jubilee

Queen Elizabeth is the first British monarch to reach their Sapphire Jubilee. There are no grand festivities planned to mark the head-of-state's new milestone. In 2015, when she thanked the nation for the kind messages after overtaking Queen Victoria to become the longest-reigning monarch in British history, she admitted bluntly that the royal record was "not one to which I have ever aspired".

The anniversary of Elizabeth II's accession to the throne in 1952 is a poignant time for the Queen, marking the day her father George VI died. A portrait of The Queen wearing sapphires was released. The necklace is made of 16 large oblong sapphires surrounded by diamonds and dates from 1850. She was in good spirits on Sunday as she greeted well-wishers after attending a church service at St Peter and St Paul in West Newton, Norfolk. Royal gun salutes will be staged in London on February 6, as is the tradition. A 41-gun salute will be fired by the King's Troop Royal Horse Artillery in Green Park at noon. A 62-gun salute by the Honourable Artillery Company will be fired at the Tower of London at 1pm.