GTA V Diamond Casino Heist Full Walkthrough 2026

Master the Diamond Casino Heist in GTA V Online for 2026, the most lucrative payout in the game at up to $3.6 million. This guide covers setups, approaches, and tips for solo or crew play, updated for latest patches.

Whether Silent & Sneaky, Big Con, or Aggressive, optimize your take with Lester's help and elite equipment. Avoid common mistakes for maximum profit.

Heist Planning & Setup Missions

Start by buying the Arcade and meeting Lester. Complete scope out, vault contents, and intel gathering.

  • Scope Out: Visit casino, ID targets.
  • Vault Drill: Access underground.
  • Duggan Shipments: Destroy rivals.
  • Getaway Vehicles: Steal fast cars.

Choosing Your Approach

Pick based on difficulty and payout.

  • Silent & Sneaky: Stealth, highest take.
  • Big Con: Disguises, medium risk.
  • Aggressive: Guns blazing, fast but risky.

Execution & Finale Tips

Infiltrate, hack, grab loot, escape. Use armored Kuruma for getaway.

  • Drill quietly, avoid cameras.
  • Sell bonds/gold/cash separately.
  • Crew: Paige, Karl for low cut.
  • Max payout: 2.5M+ after fees.

Advanced Strategies 2026

Post-2026 update tweaks.

  • Solo boost: Pause setups.
  • Elite challenges: Double money.
  • Replay cooldown: 2 hours.