According to the report of quartz financial network of the United States on October 29, those diamonds have sunk to the place where Namibia is located today, forming the most abundant diamond deposits in the world's Shanghai Ocean. It is estimated that there are 80 million carats of diamonds in the country's territorial sea, and De Beers, the world's largest diamond miner, has quietly assembled a mining fleet at sea to dig up these precious stones.
Diamonds on land are about to be mined out: no new diamond mines of mining value have been found for 20 years, the report said. Diamond mines in Canada and Australia may run out in 5 years, and diamond mines in Botswana, which sell headquarters in diamond, will dry up in 2030, analysts say. Bain business consulting predicts that even with rich resources in countries such as Russia and Namibia, the global supply of diamond raw stone will decline at an annual rate of 2% by 2030.
Without undersea diamonds, the decline would have been faster. Debarine, an exclusive joint venture between De Beers and the Namibian government, said 60% of Namibian diamonds are now from the sea and predicted that the proportion would soon rise to 94%. Since the start of seabed mining 14 years ago, 16 million carats of diamonds have been mined in Namibian waters and 62 million carats on land over the same period.
Debbarine uses five ships for mining operations, equipped with rigs or giant 'tractors' that pull sediment from the seafloor and then filter and X-ray the diamonds. The tractor alone can suck up 630 tons of ore every hour and get about 80 carats of diamonds.
Many other mining companies are following debarine's example, the report said: since then, companies from all over the world have obtained 26 seabed mining licenses to exploit multiple locations in the high seas of the Pacific Ocean.
Anglo American, the parent company of De Beers, owns a stake in the mining company, and will pay close attention to these early exploration activities. And it may soon have partners in Namibia's undersea: in October 2016, the first phosphate mining company received government permission to start deep-sea exploration.