The Duchess of Cambridge paid a visit to the Imperial War Museum in London 2018

As millions of American step out with clever and unique looks for the holiday, Kate Middleton chose to keep things classy and beautiful once again as she attended a special event.

On Wednesday afternoon, the Duchess of Cambridge paid a visit to the Imperial War Museum in London where she viewed letters relating to the three brothers of her great grandmother. All of the men fought and died in World War 1.

In addition, Kate took a brief tour of the First World War Galleries where she met historians and the fellow descendant of a First World War soldier.

During her visits, the proud mother of three wore a stunning blue dress with three-quarter length sleeves. She completed her look with beige heels and a matching clutch.

Kate in Glittering Diamonds and New Family Order for State Banquet

A Kensington Palace spokesperson confirms to Vogue that Kate Middleton wore the Lover’s Knot tiara paired with Queen Alexandra’s Wedding Necklace. They were first spotted on the duchess through the window of a Bentley, perched delicately around her head and neck.

The Lover’s Knot tiara is quite the adornment, containing 19 diamond arches decorated with 38 drop-pearls. It was commissioned for Queen Mary in 1913, made by British jewelry house Garrard.

The Duchess dazzled as she arrived at Buckingham Palace for tonight’s state banquet. The evening is in honor of King Willem-Alexander and his wife Queen Máxima of the Netherlands, in London for a two-day state visit.

A look at the senior royals at tonight’s banquet, from left to right: Queen Máxima, King Willem-Alexander, The Queen, the Prince of Wales and Duchess of Cornwall.

Now to the gems we see shimmering on the Duchess’s neck. A hearty “thank you” to all who pointed out this is Queen Alexandra’s Wedding Necklace.

It was fun seeing everyone wearing white-tie this evening. We will see Kate again next week but in a more casual environment; here’s more info from our Kate’s Calendar page.

The image of the Queen shows her in formal attire and wearing a tiara. The oval is surrounded by diamonds topped by a red enameled crown. One element of Kate’s order marks a significant change: it is painted on glass, not ivory.

Princess Eugenie marries Jack Brooksbank

Princess Eugenie has married her long-term partner Jack Brooksbank at St George's Chapel in Windsor Castle.

She wore the Queen's Greville Emerald Kokoshnik Tiara, made by Boucheron in 1919, featuring brilliant and rose-cut diamonds, pave set in platinum, with six emeralds on either side.

Royal Family members, including the Queen and Prince Philip, inside the chapel

The Duke and Duchess of Cambridge's children, Prince George and Princess Charlotte, acted as pageboy and bridesmaid. Charlotte waved enthusiastically at the crowds as they approached the chapel, though negotiating the steps in the high winds proved tricky.

Charlotte struggled to keep balance, while pageboy Louis de Givenchy - son of family friends - took a tumble. Some of the youngsters were seen giggling and joking before walking down the aisle, appearing to imitate the royal trumpeters. 

However, George held his hand over his ear as the musicians heralded Eugenie's arrival.

Eugenie and drinks executive Mr Brooksbank, who met when skiing in Switzerland in 2010, left the castle in a silver DB10 Aston Martin, originally made for the James Bond movie Spectre.

The couple were understood to be heading to the York family home, Royal Lodge in Windsor Great Park, for their evening reception.