Cullinan IV, also referred to as a Lesser Star of Africa, is square-cut and weighs 63.6 carats (12.72 g).
It was also set in the base of Queen Mary's Crown but was removed in 1914.
On 25 March 1958, while she and Prince Philip were on a state visit to the Netherlands, Queen Elizabeth II revealed that Cullinan III and IV are known in her family as "Granny's Chips".
They visited the Asscher Diamond Company, where Cullinan had been cut 50 years earlier.
It was the first time the Queen had worn the brooch publicly.
During her visit, she unpinned the brooch and offered it for examination to Louis Asscher, nephew of Joseph Asscher, who split the rough diamond.
Aged 84, he was deeply moved that the Queen had brought the diamonds with her, knowing how much it would mean to him seeing them again after so many years.
Cullinan IV, also referred to as a Lesser Star of Africa, is square-cut and weighs 63.6 carats (12.72 g). It was also set in the base of Queen Mary's Crown but was removed in 1914. On 25 March 1958, while she and Prince Philip were on a state visit to the Netherlands, Queen Elizabeth II revealed that Cullinan III and IV are known in her family as "Granny's Chips". They visited the Asscher Diamond Company, where Cullinan had been cut 50 years earlier. It was the first time the Queen had worn the brooch publicly. During her visit, she unpinned the brooch and offered it for examination to Louis Asscher, nephew of Joseph Asscher, who split the rough diamond. Aged 84, he was deeply moved that the Queen had brought the diamonds with her, knowing how much it would mean to him seeing them again after so many years.
Cullinan Diamond