The Koh-i-Noor: From Mughal Treasure to Crown Jewel

## The Mountain of Light The Koh-i-Noor — Persian for "Mountain of Light" — is one of the oldest and most politically charged gemstones in history. Currently set in the Queen Mother's Crown in the Tower of London, this 105.6-carat oval brilliant cut diamond has been claimed by the governments of India, Pakistan, Iran, and Afghanistan, each arguing that it was wrongfully taken from their predecessor states. The stone's history spans at least 700 years and encompasses some of the most dramatic chapters of South and Central Asian history — from the Delhi Sultanate and the Mughal Empire to the Sikh Kingdom of Punjab and the British Raj. ## Early History The Koh-i-Noor's origins are debated. Some accounts trace it to the Kollur Mine in Golconda, India, the same region that produced the Hope Diamond and many other famous diamonds. Other traditions associate it with the Kakatiya dynasty of the Deccan or even earlier periods. The first semi-reliable historical reference places a large diamond in the possession of the rulers of the Delhi Sultanate. When Babur, founder of the Mughal Empire, defeated the Sultan of Delhi in 1526, he acquired a famous diamond that may have been the Koh-i-Noor (or its predecessor stone before recutting). Babur's memoir, the Baburnama, describes a diamond of great size and value. ## The Mughal Period The diamond remained in Mughal possession for over two centuries. It is believed to have been one of the stones decorating Shah Jahan's Peacock Throne — the legendary jewel-encrusted throne that symbolized Mughal power at its zenith. The Mughal emperor Aurangzeb had the stone recut — a decision that history has judged harshly. According to the gem merchant Tavernier (who visited the Mughal court), the Venetian cutter Hortensio Borgio botched the job, reducing the stone from an estimated 793 carats (in its original rough form, as traditionally claimed) to approximately 186 carats. Aurangzeb was reportedly furious and fined Borgio 10,000 rupees rather than paying him. ## Persian Conquest In 1739, the Persian king Nader Shah invaded India and sacked Delhi. Among the treasures he seized was the great diamond. According to legend, it was Nader Shah who gave the stone its name — upon seeing it, he exclaimed "Koh-i-Noor!" (Mountain of Light). This story may be apocryphal, but the name stuck. Nader Shah took the diamond to Persia, but his assassination in 1747 sent the stone on a turbulent journey through his successors' hands. It passed through Ahmad Shah Durrani (founder of the Durrani Empire in Afghanistan), his descendants, and eventually back to India. ## The Sikh Kingdom By 1813, the Koh-i-Noor had reached Maharaja Ranjit Singh, the powerful ruler of the Sikh Empire in Punjab. Ranjit Singh wore the diamond on his arm and was deeply attached to it. He reportedly considered bequeathing it to the Jagannath Temple in Puri but died before formalizing the donation. After Ranjit Singh's death in 1839, the Sikh Empire descended into political chaos. The young Maharaja Duleep Singh, only 10 years old, was placed on the throne as a puppet ruler. ## British Acquisition In 1849, after the Second Anglo-Sikh War, the British East India Company annexed Punjab. The Treaty of Lahore, signed under duress by the young Duleep Singh, included a clause requiring the surrender of the Koh-i-Noor to Queen Victoria. The circumstances of the acquisition have been debated ever since. The diamond was not seized in battle; it was demanded as a treaty condition from a child ruler under British military pressure. This makes the question of rightful ownership permanently contentious. Duleep Singh was separated from his mother, converted to Christianity, and sent to live in England, where he became part of Victorian society. He later attempted to reclaim the diamond and his kingdom, but was unsuccessful. ## Recutting for Victoria When the Koh-i-Noor arrived in England, Prince Albert was disappointed by its appearance. Indian cutting techniques prioritized size preservation over brilliance — the stone retained much of its original irregular shape and did not display the fire and brilliance that European cutting had achieved. In 1852, Albert commissioned the Dutch firm Coster to recut the diamond. The recutting reduced it from approximately 186 carats to 105.6 carats — a significant loss of weight but a transformation in appearance. The stone became an oval brilliant cut that displayed far more light return than the original Mughal cut. The recutting remains controversial. It destroyed the diamond's historical cutting style and reduced its size. Some gemologists and historians argue that the original Mughal cut, while less brilliant, was more historically valuable. ## In the Crown Jewels The Koh-i-Noor was first set in a brooch for Queen Victoria. It was later set in the crown of Queen Alexandra (1902), then the crown of Queen Mary (1911), and finally the Queen Mother's Crown (1937), where it remains today. A superstition holds that the Koh-i-Noor brings bad luck to male rulers but good luck to female ones. For this reason, it has been set exclusively in the crowns of queens consort, not ruling kings. Whether this tradition is genuinely ancient or was invented to justify keeping the diamond in the female line of the royal family is unclear. ## The Repatriation Debate Multiple countries have demanded the return of the Koh-i-Noor: **India**: Has made repeated formal and informal requests, arguing the diamond was illegally taken from a minor under duress. **Pakistan**: Claims it as the Punjab was divided between India and Pakistan at partition; Punjab (where the diamond was when seized) became part of Pakistan. **Iran**: Claims Nader Shah's seizure established Persian ownership. **Afghanistan**: Claims it through the Durrani dynasty's possession. The British government has consistently refused, stating the diamond was acquired legally under the Treaty of Lahore. In 2016, the Indian government's solicitor general stated that India should not pursue legal action for its return, though this position was quickly disavowed by the Indian government. The Koh-i-Noor remains in the Tower of London, its display accompanied by minimal historical context — a silence that some interpret as discomfort with the stone's colonial acquisition history.