Specifically,
"The Argyle diamond story has its origins in the early 1970s, when one of the world's most significant find of diamonds was made at Smoke Creek in the remote north of Western Australia, over 2000 kilometres from Perth, the state capital."
You can read more about the diamond mining industry in Australia, below.
Australia produces brown diamonds from their mines.
Natural diamonds are mined throughout the world, including in Australia.
Industrial diamonds come from diamond mines, in fact about 75% of all diamonds mined are industrial diamonds.
All diamonds are erupted to the surface of the earth by volcanic pipes. Exceptions are diamonds that arrive on earth from unknown sources in space. Diamonds are found on every continent on earth except Europe and Antarctica.
Most of the world's gold comes from mines in China, Australia, Russia, and the United States. On the other hand, the majority of the world's diamonds are sourced from countries such as Russia, Botswana, Canada, and Australia.
Australia's diamond mines are major exporters of diamonds. For example, the Argyle Mine produces about eight million carats (1,600 kg) per year, and is the fourth largest diamond producing mine in the world, by volume. This is according to its Wikipedia page.
Diamonds come from mines, so issues related to mining apply to diamonds, too.
There are no natural diamond mines in Louisiana. While some enthusiasts may search for diamonds in the state's rivers and streams, these are typically small, low-quality diamonds that are not economically viable to mine. The majority of diamonds on the market come from countries like Russia, Botswana, Canada, and Australia.
'They' in this case, is Mother Nature. From WiseGeek: "Most chocolate diamonds come from diamond mines in Australia. The natural occurring brown color is thought to be created by the earth's pressure on the diamonds deep in the earth." Chocolate diamonds earn their colour by virtue of the stone's plastic deformation.
diamonds mines
Chocolate diamonds are a branded term used by Le Vian to refer to brown diamonds. These diamonds can be found in various mines around the world, including Australia, Africa, and Brazil. The unique color of chocolate diamonds is due to the presence of nitrogen during the diamond's formation process.
Diamonds can be certified as non-conflict diamonds according to the Kimberly Process. In addition, some mines, such as those in Canada and Australia are not in conflict zones, which are found in Africa.