Russian diamond mining giant Alrosa has recovered one of the largest rough diamonds to date from the Zapolyarnaya pipe of its Verkhne-Munskoye deposit, which officially opened in the autumn of 2018. The stone is a gem-quality rough weighing 63.15 carats of an octahedral shape with small chips on the edges and tops. The diamond is transparent with a yellow hue, the miner adds.
This past March, ALROSA conducted an experiment to clarify the diamondiferous nature of the northwestern part of the Zapolyarnaya pipe at the Verkhne-Munskoye deposit, extracting 239 large (over 8 carats) diamonds over the course of five days from the Zapolyarnaya pipe, or more than 3.5% of the number of diamonds extracted during the experiment. These figures exceed the data for other pipes of the Alrosa Group, the miner clarifies. The first large (over 50 carats) diamonds of the Verkhne-Munskoe deposit were a 51.49-carat crystal, mined immediately after the official launch in autumn 2018, and a unique 98.8-carat diamond, both of which are gem-quality diamonds.
Verkhne-Munskoye diamond deposit is located in the west of Yakutia is the largest investment project of Alrosa. The mine is expected to deliver about 1.8 million carats of rough diamonds per year, with reserves sufficient to continue mining for more than 20 years - until 2042.