The correct answer is option 4, Golconda. The famous Kohinoor diamond was produced from one of the mines in Golconda. Golconda, located in present-day Telangana, India, was known as a major diamond-producing region during ancient times. It was renowned for its high-quality diamonds, including the Kohinoor. The Kohinoor diamond has a long and storied history, and it has been passed down between various ruling dynasties and empires. Eventually, it came into the possession of the British East India Company and was later transferred to the British Crown Jewels. Today, the Kohinoor is a part of the Crown Jewels on display in the Tower of London.