"Set with diamonds, sapphires, rubies and emeralds, the bejewelled piece features the cypher of her father, King George VI," Zack Stone, a fine jewelry expert from U.K. retailer Steven Stone, shared with WWD.

The British royals were out in full force at Trooping the Colour on Saturday. But did you spot that Lord and Lady Frederick Windsor were also in attendance?

Princess Charlotte mirrored her great aunt, Princess Anne, as she stepped out to celebrate the King's offical birthday at Trooping the Colour on Saturday.

Lip reader, Nicola Hickling, has claimed that King Charles made a brutal 'dig' about Prince Harry to Queen Camilla during the Trooping the Colour event.

Senior working royals including Prince William, Kate Middleton, Princess Anne, Prince Edward and Queen Camilla will reportedly take part in the king's birthday parade.

The Royal family marked King Charles’ official birthday with the annual Trooping the Colour ceremony in London where the monarch was joined by Prince William, Princess Catherine and their three children.

King Charles and royal family watch Trooping the Colour flypast from Buckingham Palace balcony Source: Reuters

The Duke and Duchess of Edinburgh's son, James, Earl of Wessex, did not join the rest of the Royal Family at Trooping the Colour for the third time. His last appearance at the event came in 2022 when Queen Elizabeth II marked her historic Platinum Jubilee.