Golconda Diamond

A request to review an important family collection held in a bank vault led to our request to unset and certify a major diamond that looked to weigh in excess of 15cts.

Once seen in daylight out of its mount, the stone in question came to life and, buoyed by the news that it surpassed the magic 20ct mark in weight, we sent it to the Gemological Institute of America in New York for colour and clarity grading.

The stone was not only returned as D colour Flawless, but was given the ultimate accolade of a Golconda provenance. The legendary mines of Golconda in the southern state of Hyderabad can be considered the cradle of diamond history, and travellers from Marco Polo to Tavernier have marvelled at the stones they produced.

Renowned for their lustre, their limpid transparency and the charm of their slightly asymmetrical antique cutting, these rare diamonds are the most sought after in the market today, all the more so as the majority are re-cut to adhere to the demands of contemporary fashion. This particular example was sold to a private Middle Eastern collector.

Golconda Diamond