The Płock Diadem (Polish: Diadem płocki) was created in the beginning of the 13th century probably in Hungary. This filigree diadem is
Diadem. 200-100 B.C., Alexandria, Egypt. Made from gold this diadem was likely worn by a noblewoman of the time.
British Crown Jewels: The George IV State Diadem - 1820 by Rundell, Bridge and Rundell for the coronation of George IV. Its design features roses, thistles and shamrocks, the floral symbols of England, Scotland and Ireland respectively. In her will, Queen Victoria left the diadem to the Crown, not only ensuring the diadem would be worn by future monarchs but thereby also making the diadem part of the British Crown Jewels.
A diadem from 4th century BC discovered in one of the Macedonian royal tombs in Vergina, owned by one of the wives of Philip of Maedon,
Gold is my colour
Diadem for La Princesse Lointaine ca. 1895 Musée et Bibliothèque de l’Opera Paris
Queen Therese's ruby and spinel diadem, a gift from her husband, King Ludwig I of Bavaria.