Wittelsbach-Graff Diamond

Wittelsbach-Graff Diamond
Wittelsbach-Graff Diamond, on display at the National Museum of Natural History
Weight31.06 carats (6.212 g)
ColorFancy Deep Blue
CutAntique oval stellar brilliant
Country of originIndian subcontinent
Mine of originKollur Mine, Guntur District
DiscoveredMid-1600s by Golconda Sultanate
Original ownerNawabs of Punjab
OwnerSheikh Hamad bin Khalifa Al Thani, Father Emir of Qatar
Estimated valueUS$80 million (June 2011)

The Wittelsbach-Graff Diamond is a 31.06-carat (6.212 g), deep-blue diamond with internally flawless clarity, originating in the Kollur Mine, India. Laurence Graff purchased the Wittelsbach Diamond in 2008 for £16.4 million. In 2010, Graff revealed he had had the diamond cut by three diamond cutters to remove flaws. The diamond was now more than 4 carats (800 mg) lighter and was renamed the Wittelsbach-Graff Diamond. There is controversy, as critics claim the recutting has so altered the diamond, compromising its historical integrity.

Graff disagreed: "I decided that to create beauty, or acts of beauty, is not a sin. All we did was remove the blemishes and now it's true perfection."