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Every October, during the autumn auction season, there are always some amazing prices that make a shocking appearance at auction and cause widespread discussion. In yesterday's Sotheby's 50th anniversary evening auction "Five Consecutive Auctions", not only the Italian expressionist artist Modigliani's 1919 "Portrait of Paulette Joudan" sold for nearly 273 million Hong Kong dollars, but also the high-profile "Infinity Blue" 11.28 ct Redion-shaped vivid blue diamond, which was hammered for 198 million Hong Kong dollars (auction price 170 million Hong Kong dollars), and the winner was a lady holding the "8800" number plate in her hand. Although it did not reach the auction estimate of HK$208 million, the transaction was a testament to the diamond's unparalleled value.
When it comes to the uniqueness of this blue diamond, just like its name "Infinity Blue", the viewer seems to be able to feel the endless blue ocean. Blue diamonds are more scarce than the famous sapphire. Blue diamonds appear blue because of the trace amount of boron in their crystal structure. It is claimed that only 0.02% of diamond mining produces this color. What is even more precious is that the color of this blue diamond reaches the highest level of "vivid blue", and only 1% of all blue diamonds can reach this level, which is a rare treasure. Coupled with its huge size of 11.28 carats, it is difficult to see blue diamonds larger than 3 carats on the general auction floor, and this blue diamond has set a high price of 200 million Hong Kong dollars due to the combination of multiple "impossible" factors.
The diamond's origins can be traced back to the Cullinan Mine and the rough weighs approximately 25 carats. Globally, there are very few mines that can mine blue diamonds, and the Cullinan Mine covers almost most of them. Last year's auction in Hong Kong, De Beers Hoyo's Blue, the world record holder for blue diamonds, Oppenheimer Blue Diamonds, and Josephine's Blue Moon, which set a record price of $4,028,900 per carat, were all produced at the Cullinan Mine. The mine also produced one of the world's largest diamonds, weighing more than 3,100 carats, which were presented to King Edward VII of England. This huge rough stone was cut into 9 large diamonds and 96 small diamonds, the largest of which is called "Cullinan 1" or "Star of Africa", which is still embedded in the British royal scepter, while the second largest diamond after the cut, "Cullinan 2", is embedded in the British crown and has become a precious national treasure of the British royal family.
This auction once again proves the wonder and charm of the world of rare gemstones. For jewelry collectors and diamond lovers, the sale of this "Infinity Blue" blue diamond is undoubtedly a historic moment and makes us look forward to the treasures hidden deep underground.
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