The Liberty Bell Ruby is the largest mined ruby in the world, found in east Africa in the 1950s. It weighs four pounds, is eight and a half thousand carats, and is sculpted into a miniature form of the Liberty Bell. The ruby was created in 1976 for Beverly Hills-based Kazanjian Brothers jewelry company by sculptor Alfonso de Vivanco for the U.S. bicentennial. It was made in the same spirit as sapphire busts of presidents that the jeweler's charitable foundation presented to the White House when Dwight D. Eisenhower was president.