![LONDON, UNITED KINGDOM - APRIL 19: The Crown Of Queen Elizabeth The Queen Mother (1937) Made Of Platinum And Containing The Famous Koh-i-noor Diamond Along With Other Gems. (Photo by Tim Graham/Getty Images)](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/ZD7OPT3RI76XXIR2KQSVI5VQRA.jpg?smart=true&auth=5f8a7e966a375ca94825c4716df3c772737b4580ac66ce1589e7420e7bdd26a1&width=400&height=225)
The Crown Of Queen Elizabeth The Queen Mother, with the famous Koh-i-noor diamond, sits in the Tower of London. Tim Graham / Getty Images
The Crown Of Queen Elizabeth The Queen Mother, with the famous Koh-i-noor diamond, sits in the Tower of London. Tim Graham / Getty Images
William Dalrymple reveals the dark secrets of the Koh-i-Noor diamond
We speak to British author who recently co-authored a book that explores the real story behind the original blood diamond