If the Koh-i-Noor is the most famous, the Cullinan I is the heavyweight champion. It was cut from the largest rough diamond ever found. The Look: A massive, clear, pear-shaped diamond. The Scale: At over 530 carats, it is much larger than the 105-carat Koh-i-Noor. The Value: It sits in the British Royal Sceptre and […]