One of the most valuable blue diamonds to ever feature at an auction could sell for more than $48 million, according to Sotheby’s.
Describing the diamond as « exceptionally rare, » Sotheby’s added that only five gems over 10 carats have ever appeared at auction. None have ever been over 15 carats, « making the appearance of this flawless gem a landmark event in itself. » The rare diamond was found in the Cullinan mine, South Africa, in 2021, and has attained the highest rankings, according to the standards that colored diamonds are judged by. It was categorized as « fancy vivid blue » by the GIA — the highest possible color grading, which has been awarded to no more than 1% of blue diamonds submitted to the organization.
