The pictures do not do justice to the rich, ruby red color of the Adventurine stones in this striking brooch. The setting is shiny gold tone with a rollover clasp; the pin measures 2 inches wide by 1 1/2 inches tall. Similar brooches can be seen in Ann Pitman's excellent reference book on Juliana jewelry. This specific brooch can be seen in the book entitled "Juliana Jewelry The Last Generation" by Paula Knutson and Karla Wacker on page 285. They also refer to the stones as "Red Fluss."
Adventurine glass was produced by a process of glass-making that was invented in Venice, Italy, around 1700 A.D. The process produces a shimmering glass with flecks of gold; Adventurine stones were featured in DeLizza and Elster jewelry beginning in 1958.