After a two-year hiatus due to the COVID-19 pandemic, the Swedish royal family returned to an annual tradition over the weekend: the Nobel Prize Banquet in Stockholm. Each year, the royals sport sparkling tiaras and ballgowns to celebrate the Nobel Laureates. “After a few years’ break, we finally got to celebrate the Nobel Laureates!” Princess Sofia, 38, and Prince Carl Philip, 43, shared in an Instagram post on Saturday, showing off their looks for the glamorous banquet in front of a Christmas tree filled with lit candles. Princess Sofia wore an icy blue dress featuring elbow-length sheer sleeves and floral detailing around the neck for the night out. She completed her look with her wedding tiara, which was a gift from King Carl XVI Gustaf and Queen Silvia when she married Prince Carl Philip in 2015 — but with a major change.