The largest fancy vivid pink pear-shaped diamond to ever be offered at auction is expected to go under the hammer for $28m to $38m (£19.9m to £27m).
The 15.38-carat ‘Unique Pink’ diamond – unveiled in London today – received the highest possible colour grading for a pink diamond from the Gemological Institute of America (GIA) and was found to be Type IIa, displaying “exceedingly pure structure”.
The diamond will be offered at Sotheby’s Magnificent Jewels and Noble Jewels auction in Geneva on 17 May.
In a statement, Sotheby’s said: “The stone’s exquisite pear shape and brilliant cut accentuate its exceptional saturation, placing it in a rarefied category even among the world’s most beautiful diamonds.”
David Bennett, worldwide chairman of Sotheby’s international jewellery division, said: “It is difficult to imagine a diamond that better illustrates the term Vivid Pink than this outstanding stone. The colour is simply astonishing and, for its size, it is in my experience truly unique.”
The diamond can be seen in a short video here.