Queen Maxima of the Netherlands, Queen Mathilde of Belgium and their daughters all selected priceless heirlooms from their respective royal collections for the white tie occasion. Grand Duke Guillaume and Grand Duchess Stéphanie of Luxembourg lead the glamour at a gala dinner celebrating his accession Grand Duchess Stéphanie dazzled in a diamond tiara as she supported her husband, Grand Duke Guillaume, in welcoming guests to the Grand Ducal PalaceEach tiara has a fascinating story to tell. Others, like the diamond design worn by Princess Elisabeth of Belgium, mark a new chapter in a country's royal history. Arguably most notable of all was the tiara worn by Grand Duchess Stéphanie of Luxembourg, who hosted the evening alongside her husband. Here, a closer look into the jewellery box of the night's diamond heroes…Queen Maxima of the Netherlands in the Dutch Sapphire Tiara