It is the Mountain of Light--the legendary 186-carat Kohinoor diamond and its facets--that reflects a sweeping story of love, adventure, conquest and betrayal. Its origins are the stuff of myth, but for centuries this spectacular gem changes hands from one ruler to another in India, Persia, and Afghanistan. In 1850, the ancient stone is sent halfway around the world where it will play a pivotal role in the intertwined destinies of a boy-king of India...