Light Mountain Diamond on Farah’s Crown

Mined in Kollur Mine, India, during the period of the Delhi Sultanate, there is no record of its original weight – but the earliest well-attested weight is 186 old carats (191 metric carats or 38.2 g). The diamond was part of the Mughal Peacock Throne. It changed hands between various factions in south and west Asia, until being ceded to Queen Victoria after the British annexation of the Punjab in 1849.