|Golconda, also known as Golkonda or Golla konda ("shepherd's hill"), is a ruined fort of Southern India and capital of the medieval Golconda Sultanate (c.1518–1687). It is situated 11 km west of Hyderabad.|
The region is known for the mines that have produced some of the world's most famous gems.
|The Golconda fort was built in 945-970 CE. It fell into ruins after a siege and its fall to Mughal emperor Aurangazeb in 1687 AD. |
Golconda was a region located between the lower reaches of the Godavari, Wainganga, Wardha and Krishna-Venva rivers, in the present-day states of Maharashtra and Andhra Pradesh, central India. Today, the exact source of the so-called "lost mines of Golconda" are unknown, and India's only remaining diamond source is the Majhgawan pipe near Panna.
|Millions of years of erosion caused by rainfall and snow-melt unearthed the diamonds from their kimberlite tomb, washing them downstream to their final resting place within the shallow alluvial river gravels of India's Golconda region.|
|The term "Golconda diamond" is still used today as an indicator of very high-quality diamonds. To justify the "Golconda" name, diamonds must have a level of transparency and quality found only in rare, chemically/optically pure type-IIa natural diamonds.|
The term "Golconda" is also used as a generic term to describe higher quality diamonds with an antique cut.