pixel_player46322648
ALL GOLD simply means you completed the tasks, got all the treasure pieces, and collected enough teal diamonds to get the Achievement. Are you saying that you have completely CLEARED and have check marks by all the locatios, yet still only have 72? If so, did you buy any food energy with them?
If you cleared all the mines & didn't use any of the diamonds, then you need to contact SUPPORT so they can look at your game.
https://portal.pixelfederation.com/en/support