Stargems Group (Dubai) and Choron (Belgium) have purchased the 424.89 carat ‘Legacy of the Cullinan Diamond Mine’ from Petra Diamonds for just under $15 million.

This exceptional D-colour Type IIa gem mined from the Cullinan C-Cut adds to the most famous diamonds to have originated from this historic mine.

Richard Duffy, Chief Executive Officer, commented on the sale: “This is a significant sale for Petra Diamonds and an endorsement of the quality not only of the Legacy diamond, but also the Cullinan ore body itself, which is known for its exceptional stones.”

Shailesh Javeri, Chairman of Stargems Group, commented: “The Cullinan Diamond Mine has produced some of the most iconic diamonds the world has ever seen and, as a key client of Petra Diamonds, we are honoured to have the opportunity to polish the ‘Legacy of the Cullinan Diamond Mine’.

The diamond, one of a string of high-profile recent finds at Cullinan, is a Type II, D-colour gem.

D is the highest colour grade and Type II diamonds have no impurities, making stones that tick both boxes extremely rare and therefore expensive.