Giant Pearl was a "Richie Rich Gems" segment in the third season of the Richie Rich animated series. It first aired on October 23, 1982.
Gloria stubbed her toe while she and Richie were swimming in the ocean. Richie discovered that it was a giant clam, and carried it to shore. When he discovered that the clam contained a giant black pearl, Richie had to think of a good use for it. In the end, Richie decided to use the pearl as a bowling ball.