The Allure of the Blue Moon Diamond
Few gems in the world capture the imagination like the Blue Moon Diamond. This 12.03-carat cushion-cut blue diamond recently sold for an astonishing £32 million at auction, placing it among the most remarkable diamonds ever discovered.
What makes this gem so special? The Blue Moon Diamond displays an intense, vivid blue hue, a feature that ranks it among the rarest diamonds on Earth. Originally discovered in South Africa’s Cullinan Mine, the stone was meticulously cut and polished to enhance its brilliance.
In fact, it received the classification of Fancy Vivid Blue — the highest possible grading for coloured diamonds. This designation makes it not just rare, but truly exceptional.
A Record-Breaking Auction Moment
When the Blue Moon Diamond went to auction, it triggered an intense bidding war. As a result, the final sale reached £32 million. This figure alone is remarkable, but the sale also reflects the increasing global demand for rare gemstones.
David Bennett, Head of Sotheby’s International Jewellery Division, explained that the “Blue Moon” broke several records. Not only did it become the most expensive diamond ever sold, regardless of colour, but it also achieved the highest price per carat of any jewel in auction history.
Read more about Fancy Coloured Diamonds from the Gemological Institute of America
More Than Just a Diamond
Beyond its price, the Blue Moon Diamond represents a rare blend of nature and craftsmanship. The presence of boron in the crystal structure gives the diamond its deep blue hue — a phenomenon found in fewer than 0.1% of all mined diamonds.
From its origins deep within the Earth to the skilled hands that cut and polished it, the Blue Moon Diamond is a masterpiece. It reminds us why certain gemstones go beyond beauty — they tell stories, reflect history, and stir emotion.
Discover More with Icecool Diamonds
At Icecool diamonds, we don’t sell historic auction stones, but we do specialise in bespoke jewellery that captures timeless elegance. Whether you’re inspired by coloured gems or classic diamond designs, we can help you create something extraordinary.
Learn more about our bespoke jewellery service
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