GTA 5 Online players can complete a series of Diamond Casino missions to earn cash, RP, and exclusive vehicle discounts. These missions combine heist planning, table games, and slot play inside the casino lobby.
Understanding the mission flow helps you finish each task quickly, avoid common bugs, and maximize payouts. Below is a step-by-step overview of the 2026 mission lineup and the rewards attached to each stage.
Mission 1: The Diamond Job
- ✓Meet Agatha in the casino lobby
- ✓and accept the first mission. You must
- ✓Mission 1: The Diamond Job
Meet Agatha in the casino lobby and accept the first mission. You must win three hands of blackjack with bets of at least $5,000. Completing this step awards $50,000 and 1,000 RP.
Mission 2: High Roller
- ✓Play any slot machine until you
- ✓hit a jackpot of $25,000 or more.
- ✓Mission 2: High Roller
Play any slot machine until you hit a jackpot of $25,000 or more. The game tracks your total bets, so higher-denomination machines finish the requirement faster. Reward: $75,000 plus a 10% off coupon for the Diamond Casino penthouse.
Mission 3: Lucky Wheel Spin
Spin the Lucky Wheel once per day during the mission window. Land on the mystery prize or vehicle to complete the objective. Reward: $100,000 and a clothing set.