Emerald counter

One of the trophies on PS4 is Master Trader which is trade for 1000 Emeralds but the problem my friends and I are having is we don’t know how close or far we are from the Thousand mark we’ve traded a lot of Emeralds from world to world and we’ve lost count so if you could put a counter or tracker that lets us knw how many we’ve traded so far that would be great thanks