Gem Set and Diamond Tiaras

Five aquamarine, natural pearl and diamond brooches by Georges Fouquet, 1908, with a later tiara fitting.

A dragonfly tiara of rubies and diamonds, by Chaumet, Italy, circa 1900.

An emerald and diamond tiara, early 20th century with fleur-de-lys motifs.

An emerald and diamond tiara/brooch, circa 1915.

A ruby and diamond tiara, second half of the 19th century, formerly in the collection of Mary, Duchess of Roxburghe.

A ruby and diamond tiara, second half of the 19th century, formerly in the collection of Mary, Duchess of Roxburghe.

A zircon, pearl, enamel and diamond hair ornament/brooch by Carlo Giuliano, circa 1880.