and Colored Gem Bar Pin. Signed GWC 18ct bi-color gold bar pin displaying alternating bands of rose cut diamonds and faceted rubies with a central pearl measuring approx. 4.5mm and terminating in trefoils of seed pearls. Stamped to backing, "GWC18ct". Total approx. weight is 5.6 dwt (gross). From a Great Neck, NY estate. Dimensions: bar pin measures approx. 4" in length. Condition: Good, with light surface scratches and minor dings/dents. No definitive statement is being made as to whether colored gems are natural, synthetic or treated. No definitive statement is being made as to whether pearls are natural, cultured or treated.