The blue colour is the rarest among the diamond family. Thus, it’s not a surprise that they are the world’s most sought-after gems. So, one can imagine the kind of awe and happiness of Okavango Diamond Company when it turned up at Botswana’s Orapa mine in South Africa. It is the largest, weighed more than 20 carats and was miraculously discovered after a decade. What’s more? It is the clearest blue diamond to ever be found. Flaws, if any, could only be caught by a skilled grader using 10x magnification. The breath-taking oval-shaped diamond has been named ‘The Okavango Blue’ after Okavango Delta, the country’s wildlife-rich world heritage site. Its beautiful blue colour is due to the mineral boron, present in the rocks of oceans when it was formed some 1 to 3 billion years ago.
“From the first moment we saw the diamond, it was clear we had something very special,” exclaimed Marcus ter Haar, Managing Director of the government-owned Okavango Diamond Company. He continued, “It is incredibly unusual for a stone of this colour and nature to have come from Botswana, It’s a once-in-lifetime find, which is about as rare as a star in the Milky Way.”