The Earth Star Diamond was found in the Jagersfontein Mine in South Africa which belongs to De-Beers.
The diamond was discovered back in 1967. The rough's weight was 248.9 carats and it was later polished in Louis and Jack Baumgold's factory in New York into a 111.59 carat pear shape.
After polishing it, it was discovered that this diamond was the greatest among all polished brown diamonds at that time and that its brilliance was even greater than average.
This lead Baumgold to name it the Earth Star Diamond.
In 1971 the Earth Star Diamond was returned to South Africa to be displayed and in 1983 was bought for the amount of $900,000.