Talk:Hints, Tips, and Tricks/@comment-2601:803:4300:3F1B:D47B:ABF1:C9C:A404-20190914163712

tap your diamond icon to see the timer (or cooldown) on the diamond collection. Once you know it, you can 'maximize' the diamond earnings. The cooldown starts when you open the game (if the timer passed 0) or 0:00:00. 4 hours is the cooldown timer.