British Royal Attends The Annual Diplomatic Corps Reception At Buckingham Palace on December 8, 2016 in London, England.

Princess Diana attends a formal event in a lace evening gown and wearing diamond and pearl tiara on Novermber 10, 1985 in Washington, DC.  The diamond and pearl tiara was a wedding gift to the Duke of Cambridge's late mother Princess Diana and was one of her favorites.

Catherine, Duchess of Cambridge pictured arriving at the Diplomatic Reception in 2015

Diana, Princess Of Wales pictured wearing Cambridge Lover’s Knot Tiara in Hong Kong in 1989. The jeweled headpiece was given as a wedding present to the late Princess Diana by Queen Elizabeth II in 1981.

The Duke and Duchess of Cambridge leave Kensington Palace to attend the diplomatic reception at Buckingham Palace

Catherine, Duchess of Cambridge wore the Cambridge Lover's Knot tiara when she and Prince William, Duke of Cambridge attended the Diplomatic Reception in 2015

Draped in diamonds, the Duchess of Cambridge made a rare outing in a tiara tonight with Prince William, Duke of Cambridge for the annual Diplomatic Reception at Buckingham Palace.



Catherine, Duchess of Cambridge stepped out tonight wearing the famous pearl-and-diamond-clad Cambridge Lover’s Knot Tiara, which was a favorite of Prince William’s late mother Princess Diana of Wales, for the annual white tie diplomatic reception at Buckingham Palace.

The Duchess of Cambridge completed her outfit with the Cambridge Lover's Knot tiara, which she was pictured wearing for the first time at the same event last year. The diamond and pearl tiara was a wedding gift to Prince William, Duke of Cambridge's late mother Diana, Princess of Wales and was one of her favorites.

The incredible tiara worn by the Duchess of Cambridge was originally made by Queen Mary in 1914 to her own design from pearls and diamonds already in her family's possession,



Prince Charles and Camilla, Duchess of Cornwall, pictured arriving at the Diplomatic Reception

Prince Charles wore the Most Noble Order of the Garter, the Most Honorable Order of the Bath and his diplomatic medals. The Duchess of Cornwall also wearing The Royal Family Order of Queen Elizabeth II, an honor bestowed on female members of the British Royal Family by the monarch and worn on formal occasions.

Camilla, Duchess of Cornwall wore a white, beaded, Bruce Oldfield gown, with a Boucheron tiara, pearl choker and diamond earrings

(L-R) Queen Elizabeth II, Prince Philip, Duke of Edinburgh, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge arrive for the annual evening reception for members of the Diplomatic Corps at Buckingham Palace on December 8, 2016 in London, England.

Camilla, Duchess of Cornwall and Prince Charless, Prince of Wales arrive for the annual Diplomatic Reception at Buckingham Palace 

(L-R) Prince Charles, Prince of Wales, Queen Elizabeth II, Prince Phillip, Duke of Edinburgh, and Prince William, Duke of Cambridge arrive for the annual Diplomatic Reception at Buckingham Palace 

(L-R) Camilla, the Duchess of Cornwall, dressed in a white, beaded, Bruce Oldfield gown with a Boucheron tiara, a pearl choker and diamond earrings. Prince Charles, Prince of Wales, Queen Elizabeth II wore her sapphire and diamond tiara and a dress by Angela Kelly, and Prince Phillip, Duke of Edinburgh posed for an unprecedented and very unique photograph for the annual Diplomatic Reception at Buckingham Palace 

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge looked regal in red, recycling the same dress by designer Jenny Packham that she chose for her first state dinner with the Chinese President. She accessorized the look with diamond chandelier earrings, as they posed for a portrait ahead of the evening reception.

Catherine, Duchess of Cambridge pictured arriving at the Diplomatic Reception in 2016 at Buckingham Palace, wearing the Cambridge Lover’s Knot Tiara, which was a favorite of Prince William’s late mother Princess Diana.

The Duchess of Cambridge looked stunning in the Cambridge Lover's Knot tiara - so beloved by Prince William’s late mother, Diana, Princess of Wales

Prince Charles, Prince of Wales wearing his diplomatic medals - and the Duchess of Cornwall pictured leaving Buckingham Palace



Prince Charles,  Prince of Wales, wearing his diplomatic medals and Camilla, Duchess of Cornwall pictured leaving Buckingham Palace



Catherine, Duchess of Cambridge dazzles in Princess Diana's Beloved Tiara, she accessorized the look with diamond chandelier earrings as she attends the annual white tie diplomatic reception at Buckingham Palace.

Catherine, Duchess of Cambridge beamed as she left Buckingham Palace with her husband Prince William, Duke of Cambridge following the white tie Diplomatic Reception - the main social event of the year in London for the diplomatic community.



The Duchess of Cambridge happily smiled for the cameras, looking simply stunning in her red gown and glittering jewels.



Camilla, the Duchess of Cornwall, dressed in a white, beaded, Bruce Oldfield gown with a Boucheron tiara, a pearl choker and diamond earrings.

Catherine, Duchess of Cambridge departs after attending the annual Diplomatic Reception at Buckingham Palace on December 8, 2016 in London, England.

 Prince Charles, Prince of Wales arrives for the annual Diplomatic Reception at Buckingham Palace on December 8, 2016 in London, England.

Catherine, Duchess of Cambridge in a gorgeous red Jenny Packham gown worn previously to a state dinner with the president of China. Jenny Packham design features subtle embellishments around the bodice before it nips in her waist and elegantly falls into a floor-sweeping A-line skirt.

The Magnificent Six: Draped in some of the most breath-taking diamonds from the royal vaults, the Queen and the most senior members of her family from L-R The Duchess of Cornwall, the Prince of Wales, Queen Elizabeth II, the Duke of Edinburgh, and Duke and Duchess of Cambridge posed for the annual Diplomatic Reception at Buckingham Palace.