The company, Deltah, began in 1893 when M.J. Karpeles established the nation's oldest firm specializing in fine simulated pearl jewelry. The business started producing fine quality simulated pearls and pearl jewelry. Deltah was purchased by L. Heller at the turn of the century. L. Heller & Son, Inc.
Imperial, which was founded by Joseph Gladstone in 1932 at a time of increased growth for the pearl industry, began operating in Chicago. This particular business specialized in importing and selling Japanese Cultured Pearls. Imperial became among the first to bring the valued Akoya pearls ...
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