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The Diamond Casino Heist payout is by far the highest in GTA Online. The rewards for the mission add up toR$10.34 million on normal difficulty, and it can go up toR$11.37 million, if the heist is on hard difficulty.

The Diamond Casino Heist is the most profitable but also the most demanding heist in GTA V as it requires at least two players and meticulous planning. To carry out this heist, players need to purchase an Arcade from Lester through the Maze Bank Foreclosures website.