An Art Nouveau natural pearl, enamel and diamond ring, of foliate design, the ring mounted with a baroque-shaped natural pearl measuring approximately 40.31 x 8.51 x 6.73 mm, set between plique a jour enamel leaves, to the old-cut pear-shaped diamonds and single-cut diamond detail, mounted in gold, French assay mark, diamonds approximately 1.07 carats total, ring size H. mpanied by a report from the European Gem Laboratory USA (EGL) stating that th pearl is natural. Report number US 64534601P, dated 31 July 2012.