Crown Princess Mette-Marit of Norway wears a seed pearl necklace with a small diamond bow and pearl drop pendant during the Norwegian state visit to the United Kingdom, October 2005; the pearl necklace is similar to the one worn by Princess Ingrid Alexandra with her heart pendant

Crown Princess Mette-Marit of Norway wears a triple-stranded pearl and diamond necklace, plus a matching bracelet, for a reception ahead of the wedding of Princess Martha Louise, May 2002; the pearls were reportedly a wedding gift from Crown Prince Haakon

Crown Princess Mette-Marit of Norway wears the necklace setting of the Vifte Tiara (with Crown Princess Martha’s Silver Wedding Earrings) for a dinner held the night before her royal wedding, August 2001; more on the necklace/tiara over here!