The necklace was loaned to Kate by the Queen from the Royal Collection, after it was given to Her Majesty by the Japanese Government.
Their wedding anniversary on Thursday marks a decade since Kate became a fully signed-up member of the royal family, an HRH, a duchess and a future queen.
Kate Middleton was joined by her father, Micheal Middleton, in the Royal Box to watch the final day of Wimbledon on Sunday.
William and Kate’s choice to recycle outfits was made in accordance with the dress code rules laid out ahead of the event, as People notes that attendees were asked not to purchase new dresses.
Kate responded with the word "exhausting", while the other parents chimed in with words including "hectic", "patience" and "challenging".
“Meghan is a Hollywood starlet. You can’t blame a tiger for biting the head off a sheep. But I don’t believe a word that comes out of her mouth. She’s an actress and knows how to manipulate her audience,” said Gary Goldsmith.
The Duchess of Cambridge was said to be ‘saddened, disappointed and hurt’ by the claim.
The Duchess of Cambridge reportedly wrote a “heartfelt” letter to the family of Sarah Everard, whose death earlier this month shocked the country.
Walker, 30, performed a new song, "For Those Who Can’t Be Here," accompanied by the 39-year-old Kate playing the Piano, in a prerecorded segment shown during the concert broadcast on ITV on Friday.