1985
The Golden Jubilee Diamond was found in the Premier Mine in South Africa.
The Golden Jubilee diamond was found in the blue ground of the Premier mine in South Africa. The Golden Jubilee was cut by Gabriel Tolkowsky, whose family is Belgian. The exact location of the DeBeers-commissioned cut is not documented. You can read more about this diamond, below.
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.
The Golden Jubilee Diamond, 545.67 carats, is the largest faceted diamond in the world. It is owned by King Bhumidol Adulyadej of Thailand. It was presented to him for the celebration of his 50th coronation anniversary. (The 50th anniversary is traditionally called the "golden jubilee.") The largest raw diamond found to date was made a gift to the British Crown in the early 1900s -- and was cut into several major diamonds: The Cullinan. The raw diamond weighed more than 3,000 carats and fit into the palm of a grown man's hand.
The Jubliee Diamond was found -- according to Wikipedia -- in 1895 at the Jagersfontein Mine in South Africa. You can read more about it, below.
The biggest diamond in the world is the Golden Jubilee Diamond, which weighs 545.67 carats and has a yellow-brown color. It is cut into a cushion-shaped brilliant cut and is one of the largest cut diamonds in the world. It is estimated to be worth over $12 million.
There are two scepters used in the British Coronation ritual. From Wikipedia: "The Sceptre with the Cross was made in 1661, and is so called because it is surmounted by a cross. In 1910, it was redesigned to incorporate the Cullinan I, also known as the Great Star of Africa, which at over 530 carats (106 g) is the second largest cut diamond in the world after The Golden Jubilee."
There are two records for that: Centenary Diamond - world's largest colorless, flawless diamond and The Golden Jubilee Diamond - World's largest faceted diamond. These two are among the largest polished (finished) diamonds. The Cullinan diamond is the largest rough gem-quality ever found, at 3,106.75 carats.
The Cullinan Diamond, part of the British crown jewels, was the largest gem-quality rough diamond ever found (1905), at 3,106.75 carats. One of the diamonds cut from it, Cullinan I or the Great Star of Africa, was formerly the largest gem-quality cut diamond at 530.2 carats, but now that title has been taken by the Golden Jubilee (1985), a 545.67 carat, yellow-brown diamond. The largest flawless and colorless (grade D) diamond is the Centenary Diamond which weighs 273.85 carats. The Millennium Star is the second largest (1990) at 203.04 carats.
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The first diamond was likely found in India, where diamond mining has been documented as far back as the 4th century BCE. However, the exact person who found the very first diamond in the world is not accurately recorded in history.
Russia has the largest diamond deposits in the world, with significant reserves located in Siberia. The region is home to the famous diamond mines such as Mirny, Udachny, and Jubilee. These mines contribute significantly to the global diamond supply.