5. Wittelsbach Diamond $80 Million
The unique Wittelsbach Precious stone, also known as Der Blaue Wittelsbacher, it was a 35.56-carat (7.112 g) elegant, strong, grayish-blue diamond with VS2 quality, that had been aspect of both the Austrian and the Bavarian top jewelry. The Wittelsbach-Graff Precious stone is a 31.06-carat (6.212 g) deep-blue diamond with internal perfect quality. Laurence Graff bought the Wittelsbach Expensive Diamonds in 2008 for £16.4 thousand. Truly, Graff exposed diamonds cut by three diamond blades to eliminate faults, that given it more extreme and good shape.