This stylized Marchak openwork leaf motif brooch is centered with one carved emerald leaf approximately 12.2 x 11.2 x 6.6 mm, set with transitional, single and rose-cut diamonds weighing cumulatively 1.0ct, several H-I-VS-SI, several chipped pavilions. This brooch is signed Marchak, Paris, with French assay marks, circa 1915, weighing 6.53 grams, measuring 28.5*22.2 mm. The emerald is medium green, included, brownish inclusion across stone visible to eye, several surface-reaching inclusions, light abrasions and nicks, translucent, good polish. Good condition. Normal wear. Emerald weight: 2.2 x 11.2 x 6.6mm Diamond total weight: 1.0ct Weight: 6.53 grams Measurement: 28.5*22.2 mm Stamp: 'Marchak', 'Paris'