Diana, Princess of Wales wears the Japanese Four-Row Pearl Choker with the Lover’s Knot Tiara for a banquet at Hampton Court Palace in honor of Queen Beatrix of the Netherlands, November 1982; more on the necklace over here!

Diana, Princess of Wales wears the Delhi Durbar Emerald Choker Necklace for a gala dinner at the Tate Gallery in London, July 1997; more on the emerald suite over here!

Diana, Princess of Wales wears the necklace and earrings from the Sultan of Oman Sapphire Suite with the Spencer Tiara for a banquet in Germany, November 1987; Diana received the modern sapphire and diamond jewels from the Sultan during her 1986 tour of the Gulf States