That would be the Amarillo Starlight.
Read more about it, below.
From the site, below, you can read that the number one ranked diamond to date was found in 1972, and the raw stone weighed 16.37 carats.
This diamond, called the Uncle Sam diamond, was found at the Crater of Diamonds State Park in Arkansas in 1924 and weighed in at a whopping 40.23 carats. It remains the largest diamond ever found in the United States.
THe largest diamond ever found was 3106.75 carats.
Arkansas....the diamond mine is known as the Crater of Diamonds and is open to the public for a small daily fee. Everything that you find is yours to keep. The largest diamond ever found in the United States was found there. The nearest town is Murfreesboro.The Crater of Diamonds is a state park.
The largest carat diamond that was ever found was found by a man named Fredrick Wells in 1905. The diamond itself was found in Pretoria, South Africa.
The Cullinan is the largest diamond ever found. It is 3,106.75 carats. It was found near Pretoria in South Africa.
The Cullinan Diamond, found in RSA in 1906, weighing more than 3,000 carats as a rough stone, remains today as the largest rough diamond ever found anywhere.
From Wikipedia, link below:"Uncle Sam is the nickname for the largest diamond ever discovered in the United States. It was found in 1924 in Murfreesboro, Arkansas at the Prairie Creek pipe mine, which later became known as the Crater of Diamonds State Park. The diamond was named 'Uncle Sam' after the nickname of its finder, Wesley Oley Basham, a worker at the Arkansas Diamond Corporation."
The largest carat diamond ever found was the Golden Jubilee Diamond. It was found in 1908 and when it was cut weighed 545 carats. It is known as the Great Star of Africa.
995.2 caratsI think the one above might be one earth but there is this diamond that is in outer space the is 1x10^34 carats. a link to it is hearThe Cullinan Diamond is the largest diamond ever found and was a whopping 3,106.75 carats!
The largest raw diamond ever found fit into the palm of an adult male's hand.
The biggest carat in a cut diamond is 20 carats. The largest diamond ever found was 530 carats.
The Cullinan at more than 3,000 carats, remains the largest raw diamond ever found.