A recent discovery by Russian mining company Alrosa is being hailed as the largest extracted diamond in recent years.
The transparent gemstone, which carries dimensions of 40 x 31 x 20 mm (1.6 x 1.2 x 0.8 in.) and a weight of 191.46 carats, was mined at the Udachnaya kimberlite pipe in Russia’s Sakha Republic (Yakutia).
“Such large gem-quality discoveries, weighing more than 100 carats, confirm that there are many unique precious minerals in the reserves of the Udachnaya kimberlite pipe,” said Evgeny Agureev, director of sales with Alrosa. “Since the beginning of the development in 1967, the pipe has given hundreds of large diamonds to our company. In the near future, this rare specimen will go to the United Selling Organization for the detailed study and evaluation.”