When Princess Kate (40) performs her royal duties, her outfit is often the focus. The wife of heir to the throne Prince William (40) also caused a stir during the Royals' public Christmas walk in Sandringham. She donned a khaki ensemble as she attended church service with her husband and their children Prince George, 9, Princess Charlotte, 7, and Prince Louis, 4.

The Princess of Wales' outfit consisted of a feathered hat by one of her favorite designers, Philip Treacy, and a long coat by Alexander McQueen. The golden earrings that Kate wore for the festive occasion were also striking: the jewelry is said to come from the French brand Sezane and is worth 100 pounds (about 114 euros). As "The Sun" reports, the earrings were said to be a Christmas present from Prince William.

After Kate unveiled them on the Christmas walk, the accessories are said to have sold out online in minutes, the tabloid said. Princess Kate is a big fan of the brand, writes "The Sun".