Her Majesty, 96, thrilled revellers by making a surprise appearance on the Buckingham Palace balcony
Vivid in green, the Monarch set the seal on four days of celebrations and was cheered by thousands of well-wishers after the Platinum Pageant told the story of her life.
Smiling as she acknowledged the spectators, she looked down on The Mall where tens of thousands had waited in hope of seeing the 96-year-old head of state.
She was joined by Prince Charles, Camilla, William, Kate and their children George, Charlotte and Louis.
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Now body language expert Darren Stanton has analysed the Royal family's final appearance on the balcony - and the fleeting glance we may have missed.
Speaking on behalf of Betfair Casino, Darren reveals how Charles was full of 'admiration' for his mother, while also highlighting a touching moment the Queen shared with a 'quietly confident' Kate Middleton.
He said: "Kate was dressed in her trademark confidence colour - a striking red. It’s the colour she likes to wear when she wants to appear self-assured and in a position of power.
"While such a colour allows Kate to stand out and ensures she catches the eye, Kate doesn’t crave the spotlight and instead appeared quietly confident.
"She is more than happy to stand on the peripheral, letting the Queen and her future heirs take centre stage instead. There was a great moment, where Kate and the Queen were seen catching each other’s eye.
"Both Royals showed genuine emotion, with their faces truly engaged, as they beamed huge smiles at one another. While a fleeting moment, it portrays the strong bond and connection the Queen and Kate share, as well as the mutual respect they have for one another."
Charles has picked up many of his mother's duties with William - and Darren now says you could see his protective stance for her on the balcony.
He said: "Flanked by son Prince Charles, there were a few moments where Charles was seen looking adoringly at his mother of whom he calls ‘mummy’.
"It was an expression that showed sheer admiration and he took a protective stance of the Queen standing close yet behind her while on the balcony.”
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