At 1,111 carats and weighing nearly 227 grams, this diamond is the second-largest in the world (the largest is the 3106-carat Cullinan diamond, discovered in South Africa in 1905, weighing 603 grams). It is the largest diamond to ever be found in Botswana and the largest to be discovered anywhere in the world in more than 100 years. It is a Type IIA diamond, meaning that it contains no measurable nitrogen impurities, rendering it almost completely transparent.
Cullinan produced stones of various cuts and sizes, the largest of which is named Cullinan I or the Great Star of Africa, and at 530.4 carats (106.08 g) it is the largest clear cut diamond in the world. The stone is mounted in the head of the Sovereign’s Sceptre with Cross. The second-largest is Cullinan II or the Second Star of Africa, weighing 317.4 carats (63.48 g), mounted in the Imperial State Crown. Both are part of the Crown Jewels. Seven other major diamonds, weighing a total of 208.29 carats (41.66 g), are privately owned by Elizabeth II, who inherited them from her grandmother, Queen Mary, in 1953. The Queen also owns minor brilliants and a set of unpolished fragments.
Picture Credit : Google