The Queen has opted against wearing the Imperial State Crown for her 2019 Queen's Speech - and has placed it on a table next to her instead.
The Monarch will give her famous speech today to officially open Parliament, a ceremonial occasion filled with tradition and royal extravagance.
But she has decided to break one of the key traditions she has followed since taking the throne in 1952 - not wearing the heavy and priceless crown.
It's the second time in her reign that she has decided not to wear it for the ceremonial occasion, the last being in 2017 because of the snap election.
The Imperial State Crown was originally made for King George VI's coronation in 1937.
The design was based on the crown worn by Queen Victoria in 1838, featuring a number of priceless gemstones including the Second Star of Africa, the Black Prince's Ruby, the Stuart Sapphire and St Edward's Sapphire.
In total there are 2,868 diamonds in silver mounts, 17 sapphires, 11 emeralds and 269 pearls.
However it is very, very heavy - so it's hardly surprising that at 93 the Queen has decided it might be time to swap to a lighter alternative.
Instead she is wearing the George IV diadem, a smaller and lighter diamond crown.
The Queen first wore the piece on the way to her coronation in 1953, before it was replaced by the Imperial State Crown during the service.
It dates back to 1820 and features roses, shamrocks and thistles with 1,333 diamonds and 169 pearls.
In 2017 the Queen didn't wear a crown at all, opting for a blue and yellow hat instead - which many people believed was a nod to the EU.
Theresa May's snap election meant the date for the State Opening of Parliament was set for just a few days after the grand ceremony of Trooping the Colour, which marks the Queen's official birthday each year.
Both events are huge feats of organisation, with a Sovereign's Escort from the Household Cavalry Regiment, and the Queen’s route lined by hundreds of service personnel.
And them taking place so close together meant there was not enough time for sufficient rehearsal and preparation.
This meant the Queen's Speech was a more "casual" affair than we're used to.
The crown was still very much a part of proceedings though - travelling in its own car to Parliament from the Tower of London, where it is kept as part of the Crown Jewels collection.
In 1974 the Queen broke another tradition and wore a "day dress" and a hat rather than robes of state and Imperial State Crown to deliver her speech.
