Sylvie Lhermite-King founded the Paris antiques gallery À la Façon de Venise after earning a degree in law. Her passion for the decorative arts led to her interest in Renaissance through eighteenth-century art, specifically Venetian and façon de Venise glass of the sixteenth and seventeenth centuries. In 2008 she organized the first exhibition ever to present early modern French glass, with an accompanying catalogue raisonné now considered the standard reference book on the subject. She also organized the exhibitions Verres de la Renaissance and Verre Fili.

Lhermite-King also deals in sixteenth-century Limoges enamels, Italian maiolica, sixteenth- and seventeenth-century mounted semiprecious stoneware, and other Renaissance works of art. She advises private collectors and major public institutions including the Louvre, Musée national de la Renaissance, Musée de Cluny, Musée Guimet, Musée des arts décoratifs Paris, Corning Museum of Glass, Toledo Museum of Art, and Wadsworth Atheneum Museum of Art. She has served on the vetting committee of the Biennale des Antiquaires, Paris, and TEFAF Maastricht. As a member of the Syndicat français des experts professionnels, she acts as an expert for several Parisian auction houses. Her recent Cabinet des Merveilles auctions at Drouot drew several record prices for Venetian Renaissance glass.