A pendant-brooch designed by Jean Dinh Van. An extremely rare one-of-a-kind sculptural piece. Created in Paris, France at the beginning of the 1960's by the French master designer Dinh Van. This piece is named "The nest". It was crafted in solid yellow gold of 18 karats and is suited at the reverse, with a hinged double pins and a trombone lock for security and a 6 mm bale to wear into a chain. The design is composed by multiples organic free-forms elements, all attached as a embroidery mesh, inspired by a bird's nest. Is embellished in the center with a gemstone, as a housing symbol.  The gemstone is bezel set, is a fancy pyramidal cut of a natural blue aquamarine with a weight of 13.90 carats. Have a total weight of 32.65 grams and a measures of 60 mm (2.36 inches) by 30 mm (1.18 inches). Stamped, with French hallmarks; twice with the eagle's head for the assay and guaranty of the 18 kt gold, the maker's maitre cartouche, JDV for Jean Dinh Van and the engraved signature, "DINH VAN". Jean Dinh Van is a French designer that began is successful career in the 1960 designing for the French jewelry houses of Cartier and Pierre Cardin. In 1972 he started his own company and the followed years his revolutionary designs and style caught on quickly and launched him to the forefront of the jewelry and fashion world. All his designs are very geometric and modern, both, his original vintage pieces created for Cartier and the contemporary creations are highly collectib