ALROSA announced that a 63.15-carat rough diamond with a yellow hue was unearthed from the Zapolyarnaya pipe of its Verkhne-Munskoye deposit on July 9. The crystal has an octahedral shape and is transparent.
ALROSA conducted an experiment in March to clarify the diamondiferous nature of the northwestern part of the Zapolyarnaya pipe at the Verkhne-Munskoye deposit.
The company said that now, however, it had extracted 239 large diamonds (each over eight carats) in 5 days — more than 3.5 percent of the number of diamonds extracted during the experiment. These figures exceed the data for other pipes of the ALROSA group.
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 stones were gem-quality diamonds.
The Verkhne-Munskoye diamond deposit is located in the west of Yakutia, 170 km from the town of Udachny. At present, four kimberlite pipes have been explored — Zapolyarnaya, Deimos, Novinka, and Komsomolskaya-Magnitnaya.
The deposit is today, the project with the largest investment from ALROSA. It is projected to deliver 1.8 million carats a year for a 20-year productive life.