Kate Middleton stuns in Alexander McQueen dress, royal jewels at coronation

It’s a royal flush.

Prince William and Kate Middleton looked their regal best as they arrived at the coronation of King Charles III and Queen Camilla on Saturday morning.

The Prince and Princess of Wales were seen arriving after King Charles and Queen Camilla, sparking speculation they were late.

However, the royal couple was worth the wait, with Kate stunning in an Alexander McQueen dress — the same designer she wore to her wedding back in 2011.

The princess also wore pearl and diamond earrings belonging to the late Princess Diana, as well as the George VI Festoon Necklace made in 1950 for the late Queen prior to her own coronation.

She completed the look with a Jess Collett x Alexander McQueen headpiece.

Prince William, meanwhile, wore the Ceremonial dress uniform of the Welsh Guards.

William and Kate are participating in the historic event along with their kids, Prince George, 9, Princess Charlotte, 8, and Prince Louis, 5. 

Prince George had a starring role as one of the Pages of Honor.  

As the heir to King Charles, 74, Prince William will also have an active role in the coronation.

He will reportedly help King Charles put on the Golden Imperial Mantle, a floor-length gold cloak dating back to 1821. 

William is the only member of the royal family who will have a speaking role in the ceremony, as he will also carry out the Homage of Royal Blood. 

After his father is crowned, Prince William will kneel before his father and place his hands between the king’s and say, “I, William, Prince of Wales, pledge my loyalty to you and faith and truth I will bear unto you, as your liege man of life and limb. So help me God.”

Kate Middleton does not have an official role in the coronation. It was reported that both King Charles and Queen Camilla will wear coronation robes, but it wasn’t clear if Kate would. Both William and Kate are wearing formal robes and mantels, though Kate is not wearing a tiara.

Prince Harry, 38, is attending his father’s big day solo, without Meghan Markle and their two kids, Lilibet, 1 and Archie, 3. He was snubbed for an official role. 

Harry will reportedly be seated in a different area than William to avoid “drama” between the estranged brothers. 

Harry infamously made some scathing remarks about William in his controversial book, “Spare,” including calling William’s hair loss “alarming.”

Other untoward details he’s blabbed about his older brother include an allegation that William physically attacked him during an argument the brothers had about Markle. 

Royal watchers will be on the lookout as to how the brothers interact during their father’s coronation. 

There could also be tensions between Prince William and the new queen. According to the book “Camilla: From Outcast to Queen Consort,” Prince William “has made it clear that Camilla is the wife of his father, but not a step-grandmother to his children.”

Prince William and Kate Middleton are set to get fictionalized depictions in the Netflix hit “The Crown.”