The United Selling Organization (USO) of ALROSA was established in 1996 through the merger of two ALROSA structural units — the Diamond Center and Almazexport. Today the USO is a division of ALROSA where sorting, preliminary valuation, pre-sale preparation and sale of almost all diamonds produced in Russia Is carried out.

The USO employs more than 500 high skilled professionals — sorters and experts. They are capable of correctly grading all gemstones and thereby determining their ultimate fate. Many have been handling rough diamonds for decades.