The Pink Star qualifies as the largest internally flawless fancy vivid pink polished diamond that the Gemological Institute of America has ever graded, weighing just shy of 60 carats, more than twice as much as the closest contender, the 25-carat ‘Graff Pink’ which sold for $46.2 million in 2010.
The Type IIa stone weighed 132.5 carats in its raw state, when it was discovered in Botswana in 1999. After Steinmetz Diamonds polished the gem and named it the ‘Steinmetz Pink’, it received its public premiere in 2003 and was first sold and renamed in 2007.
When it comes up for sale on November 13 in Geneva, Switzerland, the oval-shaped Pink Star is predicted to break the world record for the largest monetary amount ever paid for a single pink gemstone at auction. Sotheby’s may garner $60 million for the rock, which amounts to $1 million per carat.
