Robert De Mario established his enterprise in New York during 1945. His creations are defined by superior quality, careful manual labor, and exacting precision. Because the firm avoided mass production, its pieces remain scarce and coveted by vintage costume jewelry enthusiasts. Although a collaboration with Stanley Hagler was proposed in the early 1960s, it ultimately did not materialize.
By 1965, the business had closed down.
The distinctive nature of the carefully chosen adornments guided DeMario toward a catalog of rare, collectible vintage stamps, a jewelry collection that continues to enjoy popularity. Despite strong interest, the pieces lacked identification until 1967, when partners chose to brand the line. Thus, Juliana was created. This title endured for roughly two years yet gained significant fame among antique jewelry aficionados. The items themselves bore no inscription; instead, the name appeared on a separate paper tag that has since been lost.
