Studs mid-19th century Ball, Black & Co. American This pair of studs with applied circular backs is part of a demi-parure that also includes earrings and a brooch. All elements have a gold scalloped base chased with a foliate border, as well as coral cylinders mounted at the center beneath cast and chased clusters of berries and leaves. The suite retains its original leather case, which is lined in pale green satin and velvet, and is marked in gold letters with the name and address of New York City jewelers Ball, Black & Co. Believed by classical civilizations to possess therapeutic and apotropaic powers and used as ornament since ancient times, coral was a staple of jewelry design in Victorian America. Coral is an organic gem, the skeleton of tiny marine animals called 'polyps.' During the mid-nineteenth century, when this demi-parure was fabricated, coral was mainly harvested from the Mediterranean waters surrounding Naples. American jewelers like Ball, Black & Co. imported Neapolita