Weight: 407.48 carats
Color: modifying color
(yellow-brown)
Value: $20 million
The third largest diamond of the world weighing was found in the town of Mbuji Mayi in the Democratic Republic of Congo (formerly Zaire) in the 1980s. Four years were spent studying and then cutting the stone, the biggest piece of rough ultimately yielded a gem weighing 407.48 carats .