18k (750 thousandths) white gold double pin brooch in the shape of an open rose completely covered with approx. 14 ct. of round old brilliant diamonds and with petals covered with approx. 3.4 ct. of round East African emeralds with minor enhancement. All the elements can be dismantled using functional screw threads, demonstrating that this is a piece of Haute Joaillerie. Gübelin gemological report for emeralds dated 14 October 2021 nr. 21100036. Dimensions: 8.3 x 6 cm. Gross weight: 43.4 g. The flower has been a theme in jewellery since antiquity: from the Egyptian lotus flower, to Chanel's reference to perfume No. 5, to the Art Nouveau sprigs of lily of the valley, the flower is always present. The model we have here is stylistically close to that of Van Cleef & Arpels and in general to the very large luxury brooches of the 1950s to 1970s. The fact that all the parts stand out shows a very meticulous, even millimetric, assembly, the result of great jewellery mastery.