Fifth biggest diamond found in mountains of Lesotho, Africa - The Economic Times
Diamond Grading – Page 2 – The Diamond Certification Laboratory of Australia (DCLA)
Firestone Diamonds soars on largest find to date at Lesotho mine
One of the Largest Diamonds in the World Discovered – DiamondStuds News
Firestone finds largest yellow diamond to date at Lesotho mine
Precious gems around the world - ABC News
Diamonds on Location - Lesotho
Where are Diamonds Found? Spotlight on Canadian Diamonds - GIA 4Cs
Lesotho mine yields one of world's largest diamonds
Examples of rough CLIPPIR diamonds from the Letseng mine, Lesotho (GIA