Thursday, 13 January 2022

The Golconda Diamond Mines of India

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, 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.
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 unearthed the diamonds from their kimberlite, washing them downstream to their resting place within alluvial river gravels of the 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.