The diamond Golden jubilee is the biggest diamond cut in the World: 545.67 carats.
It is a diamond of shape yellow-brown pillow " fire pink cushion cut, fancy yellow brown ".
It was named first of all "Unnamed Brown".
The rough diamond weighed 755 carats. It was found in the mine First one in South Africa. It was cut by the lapidary Gabi Tolkowski.
Having studied the rough diamond during several months, he cut it, at first, in a 700 carat stone, then in a pillow of shape pillow, in 148 facets.
The diamond, the property of her Of Beers, was bought in 1995 by the Thai Henry HO.
The diamond was offered to king of Thailand Bhumibol Adulyadej, on the occasion of his fiftieth anniversary of reign. The diamond was set on the royal spectre, in 1997.