Duchess Kate Looks Radiant in Polka Dot Dress & Queen Elizabeth's Earrings While Filming 'A Berry Royal Christmas'

Kate Middleton looked vibrant this holiday season in a radiant polka dot dress and earrings from Queen Elizabeth while appearing on a Christmas special on BBC.

The holiday season has seen Duchess Kate Middleton take on more roles, and she has even gotten more approval from the Queen of England.

So it's no surprise that the Royal matched the beautiful red floral and polka dot-printed dress she wore to the Christmas special organized by BBC, with the monarch's diamond and pearl earrings.

The pair of earrings was worn by the Queen in '77 to celebrate her 25th year on the throne. Kate's maxi-designed dress is from Alexandra Rich, and it features a long-sleeve, pussy-bow, and pleated bottom.

In a post shared on the Royal's official joint Instagram account with Prince William, she looked radiant as she stood beside the renowned British chef, Mary Berry, listening to the words of her husband.

Other photos in the post showed the Duchess going over festive meals prepared with the help of Berry, sitting down for a conversation, sharing a high-five while wearing an apron, amid others.

Middleton and Prince William were at the Christmas special tagged "A Berry Royal Christmas" to help prepare meals for the staff of charity organizations.

A video shared by Kensington Palace showed the Royal couple kneading and mixing baked goodies, and it came with the caption,

"Roulade Rumble. It's getting very competitive in the kitchen #ABerryRoyalChristmas."

The Duchess and the Duke have engaged in a lot of events for the holiday season recently, and last week, they joined the Queen for a diplomatic corps reception at Buckingham Palace.

The mom-of-three stunned in a navy velvet slightly off-shoulder gown with long sleeves, designed by Alexander McQueen. Middleton seemed to channel her inner Grace Kelly, and she matched the dress with a beautiful tiara.

The Lover's Knot tiara is a favorite of the Royal, and she has won it to several state events. The headpiece was commissioned by Queen Mary in 1913 and belonged to the late Princess Diana.

Middleton wants to make this year's Christmas as memorable and healthy as she can for her children

When the Duchess is not attending Royal events, she is getting her children ready for Christmas. According to a Royal source, she plans to take Princes George and Louis, and Princess Charlotte to meet with Santa at the Fairytale Grotto in Log Cabin.

The Log Cabin is a private establishment, and the source said,

"School friends of Prince George and Princess Charlotte from Thomas Battersea invited the royal duo… and other moms at the club are all very discreet."

The club membership cost is estimated to be £1,280. It is located close to the Kensington Palace, where the Royals stay whenever they are in London.

Middleton wants to make this year's Christmas as memorable and healthy as she can for her children. She is already in the heart of the holiday season, and she's taking her children along with her and Prince William too.