Set of three barrettes An 18K (750) yellow gold brooch-barrette with diamond-patterned diamonds and a central white pearl. hallmark: none weight: 4.10 g pearl diameter: 4.8 mm dimensions : L. 8 cm. An 18K (750) yellow gold barrette brooch with alternating small white pearls and diamond diamond motifs. hallmark: none weight: 3.6 g pearl diameter: 3.4 mm dimensions : L. 6 cm An 18K (750) yellow gold barrette brooch set with alternating small white pearls and tiny rose-cut diamonds. hallmark: none weight: 2.5 g pearl diameter: 2.5 mm dimensions : L. 6.5 cm weight: 10.2 g