This growing fame was partly the result of Ranjit Singh’s preference for diamonds over rubies – a taste Sikhs tended to share with most Hindus, but not with the Mughals or Persians, who preferred large, uncut, brightly coloured stones. Indeed in the Mughal treasury, the Koh-i-Noor seems to have been only one among a number of extraordinary highlights in the greatest gem collection ever assembled, the most prized items of which were not diamonds at all, but the Mughals’ beloved red spinels from Badakhshan and, later, rubies from Burma.