The third and fourth largest stones cut from the Cullinan diamond are known as Cullinan III and Cullinan IV and can be hooked together as a brooch. In 1953, The Queen inherited the brooch and wears it regularly.

The third and fourth largest stones cut from the Cullinan diamond are known as Cullinan III and Cullinan IV and can be hooked together as a brooch. In 1953, The Queen inherited the brooch and wears it regularly.

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