Koh-I-Noor means as “Mountain of Light” from Persian. It’s a 105 carat (21.6 grams) diamond that was once the largest known diamond in the world. The Koh-I-Noor was originated at Golconda in the Andhra Pradesh state of India. It was owned by various Sikh, Mughal and Persian rulers that fought each other from time to time. The stone was found to measure 36.00 × 31.90 × 13.04 mm.  The gem remains the property of the British crown and is kept in HM Tower of London and it’s a popular tourist attraction.