The Diamond Casino Heist is still one of the best money-makers in GTA Online, but the way you unlock it is not obvious. There is no glowing marker sitting outside the casino waiting for you. You have to trigger it, buy a property, and run a setup first.
This guide breaks the whole thing down, from the very first step to picking your approach and cashing out.
The 3-Step Short Answer
If you just want the fast version, here it is:
- Meet Lester Crest at Mirror Park.
- Buy an Arcade from the Maze Bank Foreclosures website.
- Run the setup mission in the Arcade basement, then start planning.
That’s the whole unlock. Everything below explains each step and how to do it well, so you don’t waste money on the wrong choices.
What You Need Before You Can Start
A few requirements have to be in place, or the heist won’t trigger:
- You must own an Arcade. No Arcade, no heist. This is the single biggest barrier for new players.
- You must be a VIP, CEO, or MC President to launch heist activities. Registering is free and takes seconds from the Interaction Menu.
- You need at least one other player to run the finale. All the prep and setup can be done solo, but the final vault job needs two to four players.
- You do not need a penthouse. A common myth. The casino penthouse is not required to start or finish the heist.
Step 1: Meet Lester at Mirror Park
When you’re ready, head to the green “L” marker at Mirror Park.
Walking in triggers an unskippable cutscene where you meet Georgina Cheng, who pulls you and Lester into the plan to rob the Diamond Casino vault. If you haven’t gotten the prompt yet, look for a green “H” near the Lost MC clubhouse across from the casino first, which kicks off the call to meet Lester.
Once the cutscene ends, Lester tasks you with buying an Arcade to use as a front for the operation.
Step 2: Buy the Right Arcade
This is where money matters. You buy Arcades from the Maze Bank Foreclosures website on your in-game phone (look for the joystick icons).
There are six Arcades, and location matters more than price. A cheap Arcade far up north makes every prep mission a long, painful drive. A central Arcade keeps your prep tight and helps you hit the Elite Challenge time bonus later.
| Arcade | Location | Rough Price | Best For |
|---|---|---|---|
| Pixel Pete’s | Paleto Bay | ~$1.24M | Cheapest, but far north |
| Wonderama | Grapeseed | ~$1.57M | Also remote |
| Warehouse | Davis | ~$1.57M | More central |
| Eight-Bit | Vinewood | ~$1.87M | Central, popular pick |
| Videogeddon | La Mesa | ~$2.35M | Central, great location |
| Insert Coin | Rockford Hills | ~$2.53M | Most expensive, very central |
Tip: If you can afford it, most veterans point to Eight-Bit or Videogeddon for their central positions. Don’t grab the cheapest Arcade just because it’s cheap. The extra driving time can cost you the elite bonus on every single run.
Pick your location on the website, customize if you want, and hit Buy.
Step 3: Run the Arcade Setup
Drive to your new Arcade and watch the short cutscene. Then head to the basement, use the computer, and complete the initial setup mission.
Once that’s done, you’ll unlock the heist planning board in the basement, the room with the big white boards. This is your command center for the whole operation.
Step 4: Scope Out the Casino
Before you can pick an approach, Lester needs intel. You’ll:
- Scope the casino exterior and interior to mark entry and exit points.
- Find the vault contents by accessing the security camera feed.
Two access points are worth photographing carefully and sending to Lester:
- The security tunnel entrance near the racetrack, required for The Big Con.
- The staff side door past the garage, used by both The Big Con and Silent & Sneaky.
Also look for the vault blueprints on Ms. Baker’s desk. Grabbing that photo unlocks the vault door practice option later, which is genuinely useful.
Step 5: Pay the Setup Fee and Pick Your Approach
Now you commit to a plan. Paying the setup fee starts finale planning.
- The first time you set up the heist, it’s free.
- Every run after that costs a $25,000 setup fee on the board.
Then you choose one of three approaches:
The Three Approaches Compared
| Approach | Style | Difficulty | Best For |
|---|---|---|---|
| The Big Con | Disguise and walk in | Easiest | Beginners, randoms, consistent runs |
| Silent & Sneaky | Full stealth | Hardest | Coordinated teams chasing max payout |
| Aggressive | Guns blazing | Fastest, riskiest | Speed runs, but pays least |
A few key rules on approaches:
- You cannot use the same approach twice in a row. Rotate between two to keep running the heist.
- Repeating an approach later flags it with a red skull = Hard Mode: tougher guards, six vault locks instead of four, and double fingerprint patterns.
- Hard Mode raises the potential take by about 10%.
Which should a beginner pick? The Big Con with a Gruppe Sechs entry is the most forgiving and consistent. Silent & Sneaky pays slightly more if your crew can avoid all combat. Aggressive is fast but the damage you take gets deducted from your final cut, so it usually pays the least.
Vault Contents and Payouts
What’s in the vault is randomized, and it changes your take a lot. Rough maximum values:
| Vault Target | Approx. Max Value |
|---|---|
| Cash | ~$2.1 million |
| Artwork | ~$2.3 million |
| Gold | ~$2.5 million |
| Diamonds | ~$3.2 million |
Diamonds are the jackpot, but they only appear during special “Diamonds are back” event weeks. The rest of the time, Gold is your best realistic target.
Important reality check on your actual cut:
- These numbers are the gross vault take, not what lands in your pocket.
- Lester takes 5% off the top.
- Your hacker, driver, and gunman each take a percentage.
- Damage taken during the finale is deducted from the score.
For a two-player run, individual payouts usually land somewhere between $400,000 and $800,000 after all cuts, depending on the loot and how clean your run was.
Support Crew: Who to Hire
Your crew choices directly affect your payout and your vault time:
- Hacker: The most important pick. A better hacker means more time in the vault. Avi Schwartzman or Paige Harris give you the longest hack windows. Avi has to be unlocked first.
- Driver: For most approaches, cheap is fine. Karim Denz at 5% is a common budget pick since the getaway rarely needs a supercar.
- Gunman: Karl Abolaji at 5% works for stealth runs where you won’t fire a shot anyway.
The logic: spend on the hacker, save on the driver and gunman when your approach doesn’t need firepower.
Pro Tips Most Guides Skip
A few extras that make a real difference:
- The first weekly run pays a huge bonus. On a host’s first finale of the GTA weekly period (resets Thursday), the payout is boosted well beyond the normal amount, and that bonus is shared with the whole crew.
- Finish the finale in under a set time without triggering the alarm to earn the Elite Challenge bonus: an extra $50,000 on Normal or $100,000 on Hard.
- Buy the Arcade upgrades if you can. The Master Control Terminal and heist planning board practice tools (drone, keypad, vault door) make setups smoother.
- Stock snacks and armor before every finale, no matter the approach.
- Avoid the casino during the getaway. Driving back toward it re-triggers your wanted level.
Frequently Asked Questions
Can you do the Diamond Casino Heist solo?
You can do all the scoping and prep solo, but the finale needs at least two players. It cannot be completed alone.
How much does it cost to start the Diamond Casino Heist?
You need an Arcade, starting around $1.24 million. The first setup is free; each later setup costs $25,000 on the board.
Do I need a penthouse to do the heist?
No. Only an Arcade is required.
What’s the best approach for the most money?
Silent & Sneaky nets the most for a coordinated team that avoids all combat. The Big Con is the most consistent choice for beginners and random crews.
Why can’t I buy an Arcade?
You have to meet Lester at Mirror Park first. Until that cutscene plays, the Arcades won’t be available to purchase.
How often can I run the heist?
As often as you like, but you must alternate approaches and there’s a short cooldown between finales.
