4: The Clark Pink, a Fancy Vivid cushion-cut purplish-pink diamond, 9.00 carats Sold for $15,762,500 in 2012
Stored in a bank vault since the 1940s, this unique purplish-pink diamond is set in a Belle Epoque ring made by Dreicer & Co. and formerly belonged to the reclusive American mining and railroad heiress, Huguette M. Clark. When it sold for almost double its upper estimate in 2012, it became the most expensive pink diamond ever seen at auction in the United States.
The ring was the top lot of a collection of 17 of Clark’s jewels that were auctioned by Christie’s, which also sold her collection of paintings by artists including Monet, Renoir and Whistler, two years later.
Content courtesy: Christie’s