(IDEX Online News) – Petra Diamonds reports the recovery of an "exceptional" 29.6 carat blue diamond at the Cullinan mine in South Africa.

 

"The stone is an outstanding vivid blue with extraordinary saturation, tone and clarity, and has the potential to yield a polished stone of great value and importance," the firm said.

 

"Blue diamonds are among the rarest and most highly coveted of all diamonds and the Cullinan mine is the most important source of blues in the world.

 

"This stone is one of the most exceptional stones recovered at Cullinan during Petra’s operation of the mine."