Golconda diamonds Wikipedia
The Golconda Diamonds are Indian diamonds mined in a specific geographic area in the presentday Telangana and Andhra Pradesh states of South the rule of the historic Qutb Shi dynasty (16th century–17th century CE), also known as the "Golconda Sultanate", diamonds from these mines (especially Kollur Mine) were transported to the city of Hyderabad to be cut, polished, evaluated ...