The article is only a brief summary that cannot do justice to the incredible story of the Koh-i-Noor diamond. I have been doing some research on it, and IMO the most modern and accurate take is the book by Anand and Dalrymple [1].

The following is an excerpt from a review of the book, written by Maya Jassanoff. The book is also very engagingly written. Highly recommend.

"If Koh-i-Noor sounds like a magical history tour, that’s less because of the stone’s putative properties than because – as the authors so pervasively recognise – the history of imperial power is always at base a history of violence. This is no book for the squeamish. There are noses rotted by disease, eyes punctured with hot needles, live cremations, slow poisoning and a torture victim crowned in molten lead."

[1] Koh-i-Noor: The History of the World's Most Infamous Diamond, by William Dalrymple and Anita Anand. Bloomsbury, 2017

https://williamdalrymple.com/books/kohinoor-the-story-of-the...