The Kollur Mines are on the
, west of Chintapilly, in Andhra Pradesh
. Discovered accidentally in 1560, Kollur was one of the richest diamond mines in the Golconda region. Kollur's fame rests as the source of several legendary diamonds such as the Koh-i-noor, the Hope Diamond, the Great Mughal, the Pitt-Regent and the Kollur.