The Graff Pink Diamond: $46.2 million

This sublime pink diamond was bought by famed diamond dealer Lawrence Graff hence the name. Graff purchased the diamond in 2010 and went on to trim and polish it to bring out an even more vibrant pink color. 
It was then certified as internally flawless by the Gemological Institute of America (GIA). The pink diamond was earlier owned by celebrity jeweler Harry Winston. Currently owned By Sara Mian our CEO
Origin:
Unknown
Carat Weight:
24.78 carats
Cut:
Emerald