18K (750) white gold brooch-clip in the form of a network of intersecting lines, set with a clear rectangular cut emerald and set with rounded old-cut and 8/8-cut diamonds. French work, 1960's. Height: approx. 5.2 cm. Emerald dimensions: approx. 9.3 x 7.3 x 5.7 mm. Gross weight: 13.5 g (bumps)