The Drexel Pearl is a perfectly symmetrical natural, drop-shaped, black pearl from the Polynesian Region. It is 33.80 carats and although considered a black pearl it contains more of a grey color. It is a lot smaller than many other famous pearls, but is well known because of its extremely rare characteristics of a natural pearl.
It was named the Drexel Pearl after its owner, Mary Stretch Irick Drexel, who was a philanthropist and a collector of jewels. In 1905 the brooch in which the pearl sits in now, was designed by Cartier. It is known as the Belle Epoque pendent-brooch and was commissioned by Mary Drexel.

Like many of the other famous pearls in history, the Drexel Pearl was last in exhibit at the Smithsonian’s National Museum of Natural History in the “Allure of Pearls” exhibit.