Nadine Ifrah Leo and her daughter Maya Ella Nelson own the Mississippi River Pearl Jewelry, Co, est. 1982. Nadine traveled the American Rivers acquiring natural pearls, especially the upper Mississippi River. Nadine has supplied many of the finest jewelers around the world including Tiffany & Co, Harry Winston, Mikimoto, etc. She sold a 24mm Mississippi River Pearl to Queen Elizabeth's jeweler that was subsequently used in Princess Diana's Ring. Earrings have Mississippi river pearls. They measure 0.5-inches long and 0.25 inches wide. A very rare set.