Massive 552-carat diamond the size of EGG discovered - and it's the biggest ever in North America
Carat to MM weight conversion values - MID House of Diamonds
See The First-Ever Diamond Found Trapped Inside Another Diamond
Many huge diamonds found each year. Why? - Holloway Diamonds
First Class Diamonds & Jewelry
Largest Diamond Ever Mined in North America to Hit the Auction Block a – Diamond Designs
See The First-Ever Diamond Found Trapped Inside Another Diamond
World's most expensive rough diamond sells for $63 million
Carat to MM weight conversion values - MID House of Diamonds