fer·ron·nière | ferən¦ye(ə)r
A narrow band, with a center jewel, which encircles the forehead
A Ferronniere is a type of headband made popular in 15th century Italy, worn on the bearer’s forehead. They typically have a small, center gem suspended from the center of the circlet. The term Ferronniere was coined in the 19th century and was re-popularized for evening outings and formal events. It was commonly worn between 1820 and 1840 before falling out of fashion. Historians note that it was worn as a reference to renaissance style and medieval-inspired fashions at the time. Similar jewelry worn at the time includes bandelettes and tour de tetes.