Орден Святой Анны
On January 31, 1748 Korff was granted to the privy councilors for diplomacy and on 9 March 1762 - in the real secret advisers. He was honored with awards: in 1743, the Order of St. Anna 1st degree, in 1744, the Order of St. Alexander Nevsky and in 1763 the Order of St. Andrew.