TRANSFORMATION SET In silver and yellow gold, comprising a brooch pendant centred on a star set with an old-cut cushion diamond in a scalloped setting, embellished with arabesques and fleurs-de-lis set with turquoise cabochons and small diamonds, holding drops of turquoise. A pair of transformation earrings, a barrette brooch and matching clasp. Napoleon III period. In a presentation case made by Borgnis Gallanty in Paris. Mellerio & Successeurs. An old cut diamond, turquoise, silver and >9k gold transformable parure, comprising a brooch pendant, a pair of earrings and a brooch. Circa 1870. RC : Dimensions of brooch / pendant: 9 x 5 cm approx. Height of an ear pendant: approx. 1 or 6 cm. Dimensions of barrette brooch: 4.4 x 2 cm. Gross weight: 47.8 g (>9k - 375 and Agt - 925) Gross weight of the barrette brooch: 6.8 g (18k - 750).