A diamond and aquamarine tiara, circa 1900, designed as a band of graduated ribbon scrolls, set with

A diamond and aquamarine tiara, circa 1900, designed as a band of graduated ribbon scrolls, set with circular-cut diamonds, mounted in silver on gold with a later rhodium plating, on a steel tiara frame, the centre with a detachable ribbon scroll motif set with brilliant-cut diamonds, interchangeable with a brooch set with pear-shaped aquamarine weighing approximately 55.00cts, surmounted by a ribbon bow millegrain-set with cushion-shaped diamonds, tiara inner curve 28.5cm, height at centre 7cm, brooch length 4.4cm, brooch with fitted case stamped Parkes, 12 Vigo Street, Regent St W