On February 17, 2019, a unique gem-quality rough diamond weighing 98.8 carats was mined by PJSC ALROSA at Zapolyarnaya kimberlite pipe, which is the part of the Verkhne-Munskoye diamond deposit.
The gem has an octahedral shape. There are inclusions in the peripheral and intermediate zones. Rough diamond is transparent with a visible yellow shade, gem-quality.
Diamond was recovered by Bourevestnik reconcentration X-ray luminescence sorter LS-OD-50-03N, which is capable to retreat -50… +5 mm diamond bearing concentrate with throughput up to 2,5 tph and ensuring 99% recovery rate.