Koh-i-Noor diamond …

The Koh-i-Noor, (Persian كوهِ نور Kūh-e Nūr) meaning "Mountain of Light" in Persian. Alternative spellings are: Koh-i-noor, Kuh-e Nur or Koh-i-Nur, is a 105.6 metric carats diamond, weighing 21.6 grammes in the most recent cut state, and once the largest known diamond. The Koh-i Nur is believed by some to have originated in the state of Andhra Pradesh in India together with its double, the Darya-ye Noor (the "Sea of Light"). The diamond probably came from the Kollur mines, near the village in the present-day Guntur district of Andhra Pradesh, India.^[3][4]

Shah Jahan, famous for building the Taj Mahal in Agra, had the stone placed into his ornate Peacock Throne.

The valuation of the Koh-i Noor is given in the legend that one of Nādir Shāh's consorts supposedly said, "If a strong man should take five stones, and throw one north, one south, one east, and one west, and the last straight up into the air, and the space between filled with gold and gems, that would equal the value of the Koh-i Noor."

After the assassination of Nādir Shāh in 1747, the stone came into the hands of his general, Ahmad Shāh Durrānī of Afghanistan. In 1830, Shujāh Shāh Durrānī, the deposed ruler of Afghanistan, managed to flee with the diamond. He went to Lahore where Ranjīt Singh forced him to surrender it;^[7] in return for this, Ranjīt Singh won back the Afghan throne for Shah Shujā'.

Ranjīt Singh was crowned ruler of the Punjab region and willed the Koh-i Noor to the Jagannāth Temple in Orissa on his death bed in 1839. After his death however the British administrators did not execute his will.^[8] On 29 March 1849, the British raised their flag on the citadel of Lahore and the Punjab was formally proclaimed part of the British Empire in India. One of the terms of the Treaty of Lahore, the legal agreement formalising this occupation, was as follows:

The gem called the Koh-i-Noor which was taken from Shah Shuja-ul-Mulk by Maharajah Ranjit Singh shall be surrendered by the Maharajah of Lahore to the Queen of England.

The Governor-General in charge of the ratification for this treaty was Lord Dalhousie. He more than anyone, was responsible for the British acquiring the Koh-i Noor, in which he continued to show great interest for the rest of his life. Dalhousie's work in India was primarily aimed at appropriation of Indian assets for the use of the British East India Company. His acquisition of the diamond, amongst many other things, was criticized even by some of his contemporaries in Britain. Although some suggested that the diamond should have been presented as a gift to the Queen, it is clear that Dalhousie felt strongly that the stone was a spoil of war, and treated it accordingly. Writing to his friend Sir George Cooper^{[disambiguation needed]} in August 1849, he stated:

The Court [of the East India Company] you say, are ruffled by my having caused the Maharajah to cede to the Queen the Koh-i-noor; while the 'Daily News' and my Lord Ellenborough [Governor-General of India, 1841-44] are indignant because I did not confiscate everything to her Majesty... [My] motive was simply this: that it was more for the honour of the Queen that the Koh-i-noor should be surrendered directly from the hand of the conquered prince into the hands of the sovereign who was his conqueror, than it should be presented to her as a gift—which is always a favour—by any joint-stock company among her subjects. So the Court ought to feel.

Dalhousie arranged that the diamond be presented by Maharaja Ranjīt Singh's young successor, Dulīp Singh, to Queen Victoria in 1850. Dulīp Singh was the youngest son of Ranjīt Singh and his fifth wife Maharani Jind Kaur. Dulīp, aged 13, travelled to the United Kingdom to present the jewel. The presentation of the Koh-i Noor to Queen Victoria was the latest in the long history of transfers of the stone as a spoil of war. The diamond is now set into the crown worn by the female consort to the Monarch of the United Kingdom, and is currently in the Crown of Queen Elizabeth.

Disappointment in the appearance of the stone was not uncommon. In 1852, in Amsterdam^[11] under the personal supervision of Victoria's consort, Prince Albert, and the technical direction of James Tennant, the diamond was cut from 186 1/16 carats (37.21 g) to its current 105.602 carats (21.61 g) to increase its brilliance. Albert consulted widely, took enormous pains, and spent some £8,000 on the operation, which reduced the weight of the stone by a huge 42 percent—but nevertheless Albert was dissatisfied with the result. The stone then was mounted in a brooch which Queen Victoria often wore. It was kept at Windsor Castle rather than with the rest of the crown jewels at the Tower of London.^[12]

After Queen Victoria's death it was set in Queen Alexandra's brand-new diamond crown, with which she was crowned at the coronation of her husband, King Edward VII. Queen Alexandra was the first Queen Consort to use the diamond in her crown, followed by Queen Mary and then Queen Elizabeth, the Consort of King George VI.

It is believed that the Koh-i Noor carries with it a curse which affects men who wear it, but not women. All the men who owned it have either lost their throne or had other misfortunes befall them. Queen Victoria is the first reigning monarch to have worn the gem. Since Victoria's reign, the stone has generally been worn by the British Queen Consort, never by a male ruler. The notion of a curse pertaining to ownership of the diamond dates back to a Hindu text relating to the first authenticated appearance of the diamond in 1306: "He who owns this diamond will own the world, but will also know all its misfortunes. Only God, or a woman, can wear it with impunity."

India has claimed the diamond and have said that the Kohinoor was taken away illegally and it should be given back to India.^[8] When Elizabeth II made a state visit to India marking the 50th anniversary of Independence in 1997, many Indians in India and Britain including several MPs demanded the return of the diamond.