Mattson, Linda. History of the Village of Otter Lake, Lapeer County, Michigan. CMU Term Paper, 1971. Metamora Among the Hills: A History. Metamora Township, MI: Metamora Friends of the Library, 1979. Porter, Floyd W. The Triumphs of His Grace; A Pilgrimage of More than 140 Years by the People of God, Called Methodist at Lapeer, Michigan.
Â· The Cullinan Diamond was discovered in 1905 and at 3,106 carats was the largest gem-quality rough diamond ever found. Cullinan I, or the Great Star of Africa - at 530 carats formerly the largest cut diamond - was one of the 105 gems cut from it. Â· The Koh-i-noor is part of the British crown jewels.
The diamond that takes first place is the Sergio. This rock was found in Brazil in 1895 and weighs 3,150 carats (about 1.4 pounds) making it the largest uncut diamond in the world. The Sergio is even more interesting because of its color, a rare black. Black diamonds like the Sergio are believed to have their origins in meteorites. Cullinan