A Single Strand Graduated Natural Pearl Necklace, Tiffany & Co., Circa 1903, consisting of 66 graduated pearls measuring approximately 3.90-7.00 mm strung knotted with a platinum topped gold clasp containing one old European cut diamond weighing approximately 0.48 carat total.Accompanied by a Gemological Institute of America pearl identification certificate number 2165657357, dated October 3, 2014, stating Pearls: Predominantly Natural, Environment: Saltwater, Species Pinctada, Treatment: No indications of treatment, Shape: Variously, Bodycolor: Cream, Overtone: Orient.Accompanied by the original case signed TIFFANY & Co. NEW YORK PARIS LONDON.Accompanied by an envelope and appraisal dated to 1936, as well as an additional letter from 1936 describing the original purchase by George Willis Pack of the necklace in 1903, all signed by TIFFANY & Co.