The Cullinan is a wonder of nature, of exceptional colour (D Blue-white) and of flawless clarity.

Cullinan I, the great "Star of Africa" weighing 530.2 carats is in the Queen's Sceptre. Cullinan II weighing 317.4 carats is in the Imperial state Crown which Her Majesty wears each year to the opening of Parliament. Cullinan III weighing 94.4 carats and Cullinan IV (63.6 carats) are in Queen Mary's crown.

The other five major pieces are in jewellery owned by the Queen.

Both the Cullinan (formerly Premier) mine in the town Cullinan near Pretoria and the Crown Jewels, which are on display to the public at the Tower of London, draw significant numbers of tourists every year.

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