Leopoldo Janesich opened his first shop in Trieste, Italy in 1835, which offered jewelry and silverware to international clientele who visited the bustling port city for both business and pleasure. At the end of the nineteenth-century, Janesich established a store in Paris, not far from the fashionable Place Vendôme. Following success in Paris, additional locations were opened in Biarritz, London, Monte Carlo, and Vichy.

Janesich’s designs caught the eye of important figures of the time such as the Archduke of Austria, King Nicholas of Montenegro, and the Duke of Aosta. The firm is especially well-known for jewelry and accessories designed during the Art Deco period, when jewelers explored new materials and styles. Inspired by the developments in architecture and machinery of the time, Janesich jewels from the 1920s and 1930s reflect the preference for platinum and diamond geometric designs.