The emperor however says distinctly that the diamond weighed about eight mishkals, which being interpreted means about one hundred and eighty-six carats of our weight, or a little less than the Orloff and fifty carats more than the Regent. It is mainly on the evidence of the weight thus carefully recorded by Baber, that we identify the Koh-i-nûr, and can trace its subsequent career. On its arrival in England its exact weight was found to be one hundred and eighty-six and one-sixteenth carats, which agrees with the figure given by Baber as afterwards computed by dependable authorities. When we consider the extreme rarity of these great diamonds, coupled with the fact that no two stones are of exactly the same weight, we may feel pretty safe in concluding that Baber's "famous diamond" and our Koh-i nûr are one and the same stone, especially as henceforward its history is tolerably consecutive. [Illustration: KOH-I-NUR, INDIAN CUT. (186 _carats_.)] This magnificent gem the emperor gave to his beloved son Humayûn, who had very dutifully offered it to his father as tribute. It is somewhat painful to learn that Humayûn rewarded this generosity by base ingratitude. The very next year we find Baber making this complaint: "I received information that Humayûn had repaired to Delhi and had there opened several houses which contained the treasure and had taken possession by force of the contents. I certainly never expected such conduct from him, and, being extremely hurt, I wrote and sent to him some letters containing the severest reprehension." It was surely not a comely action in the man who had received the Koh-i-nûr as a gift from the hands of his father, to plunder that father's treasure houses. Baber was at all events in full possession of his health and power and was abundantly able to enforce the obedience of his son. He again admitted Humayûn into favor, and four years later, namely in 1530, we find this fondly-cherished son languishing in mortal illness. The father was in despair, and sent him down the Ganges one hundred miles to Agra in hopes of benefiting him, but apparently to no purpose. A man of great piety was appealed to for his opinion, and he declared that in such cases the Almighty sometimes deigned to receive a man's most valuable possession as a ransom for the life of his friend. Baber declared, that next to the life of Humayûn, his own was what he held most precious in the world, and that he would offer it up as a sacrifice. His courtiers, aghast at the purport of such a vow, begged him to offer up instead "that great diamond taken at Agra," and reputed to be the most valuable thing on earth.