April 16th 2019, largest gem quality diamond weighted 118,91 crt was found at International mine of Alrosa in past two years.
«This crystal is unique as it has a large clean area despite the inclusions in the center - this makes it a gem-quality diamond…» - explained Evgeny Agureev, Member of the Management Board, Director of the United Selling Organization at ALROSA.
Diamond was recovered at x-ray luminescence sorter of Bourevestnik JSC LS-20-05-2N model, specially designed for enrichment of initial material -50 + 10 size fraction at throughput of 60 to 100 tph with minimum 98% of recovery rate.
