In 1848 the Sultan of Egypt, Ibrahim Pasha, acquired a diamond porpularly believed to be of indian origin. Weighing 40 carats the stone dissapearred from view re-emerging a few decades later and acquired by Barbara Hutton, the Woolworth heiress.
The loose octagonal shape was not to her taste, she had the diamond re-cut by Cartier after which the weight totalled 38.19 carats. Eventually a New york jeweller purchased the diamond and had it re-cut again.
They say few large and famous diamonds hide their secrets and history better than the Pasha of Egypt diamond.