The oval-shaped diamond has been named “The Okavango Blue” in honour of the Okavango Delta, the country’s wildlife-rich world heritage site. In 2016, a massive intense blue diamond, known as The Cullinan Dream sold for $24.5 million at a Christie’s auction in New York, breaking all records and becoming the most expensive gem of its kind ever sold at auction.
Last year, a 6.16-carat blue diamond, secretly passed down through European royalty over three centuries, fetching $6.7million at a Sotheby’s auction in Geneva — $1.4 million more than what experts expected it to sell for.
Botswana is one of the world’s largest producers of diamonds, accounting for about 80 per cent of its exports as
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