KATE Middleton was spotted wearing a pair of the Queens earrings as she filmed a cooking show with Mary Berry.
The Duke and Duchess of Cambridge, both 37, teamed up with the TV chef to help create a dinner party for staff and volunteers at the charities they support.
A Berry Royal Christmas hits our screens tomorrow night on BBC One, but royal fans noticed something extra special about Kates outfit in previews of the programme.
The mum-of-three wore a 1,018 red polka-dot dress by Alessandra Rich, but added some bling in the form of the Queens earrings.
The monarch, 93, lent Kate the silver jubilee diamond and pearl earrings for filming.
The Queen notably wore them to celebrate her silver jubilee in 1977 which gives the earrings their nickname.
The pair are typically worn by the monarch during the daytime, and they form part of the collection she still regularly wears.
In recent years other members of the royal family have borrowed the bling, with Sophie, Countess of Wessex, also donning the pair for a royal function.
The countess wore them in 2012 while in Luxembourg for the wedding of the Hereditary Grand Duke,and she also borrowed a tiara and necklace from the Queen’s collection.
She wore the earrings in 1977 for the silver jubilee celebrations – where the jewellery gets its nickname from
Kate has also been loaned the earrings before, wearing them in 2016 while on a royal tour in Canada.
The hour-long show, which starts at 8.30pm, sees the royal couple whip up dishes Mary, 84, has devised, with the help of Great British Bake Off winner, Nadiya Hussain.
The show, filmed at the Rosewood Hotel in London, delves into the charities the Cambridges support, with Mary accompanying the couple to visit a few of them.
Sophie Wessex wore the earrings to a wedding back in 2012
Kate has worn the earrings a few times in the past
Dubbed the Kate British Bake Off, Mary praised the work Kate and Prince William do.
Speaking with YOU magazine, she said: It was easy to see thatWilliamis very proud ofCatherine.
He was keen to stress to me how none of his mental health charities would be what they were without Catherine, who puts so much time, effort and care into making sure everything works well.
A Berry Royal Christmas hits our screens tomorrow night
“It was just lovely observing them for those three days.
“When they are together, he’s constantly touching her arm and looking over at her smiling and she’s the same with him.
It was very sweet to see because it was so natural.”
And Mary Berry called Prince William and Kate Middleton a ‘pigeon couple’ because they’ll mate for life.
On the same shows, Kate revealedone of Prince Louis first words was Marythanks to her love of the former Bake Off judge.
In more royal news, Princess Beatrices wedding date is set for June but it wont clash with The Queens beloved Royal Ascot.
