Diamond Heist is the fifth heist on the list, and cannot be played on Easy difficulty.

DiamondHeist rooftop.jpg

Walkthrough[edit | edit source]

Access the alarm boxes[edit | edit source]

You and your team begin at one of the preset spawn points. There are three highlighted alarm boxes onto which you must plant a hacking device. It is recommended that you attempt to do this without being caught by any of the twelve patrol guards, because the more devices planted before being detected, the easier the heist will be.

Stealth[edit | edit source]

A patrol guard will trigger the alarm if a player goes within his cone of vision for a brief period of time (1.5 seconds), he hears gunfire, or is attacked. Sprinting will not alert the guards at any range. It is possible to sprint directly in front or past a guard without them noticing, but this is ill-advised unless there is no other option. Any glass pane near a guard will trigger the alarm if broken.

Players should pay attention to the flashlights and radio chatter in order to detect a guard without actually seeing him. Each guard's cone of vision is quite short: about as far as his flashlight's range. Players can highlight guards for approximately 10 seconds and see them through walls during that time by shouting with their crosshair on the guard. Each guard frequently makes 90° or 180° turns, and occasionally stops walking for more than 10 seconds at a time. Most of the guards only patrol one floor, but some of them travel between the 23rd floor and the roof.

Civilians in the dance room can trigger the alarm if a player comes too close. Players cannot ascend the staircase next to the dance room while staying undetected, but can descend it only if they jump over the railing from the far side at the cost of some health. Players can also run around the dance room as long as they hug the exterior wall of the building.

A melee attack or silenced weapon (B9-S or Mark 11) can be used to destroy cameras; however, the alarm will be triggered if a guard is too close to a silenced shot, and cameras do not appear to have any effect during the stealth phase.

In addition to planting the hacking devices, you may also wish to steal some of the ten sapphires found in display cases throughout the building. However, you must remain undetected, because unopened cases seal as soon as the alarm is triggered.

After detection[edit | edit source]

Each hacking device that is planted after the alarm is triggered requires four minutes to complete the process, and must be occasionally "reset" – at which point it will beep and be highlighted in orange. The team must fend off assault waves in the interim.

Enter codes[edit | edit source]

Head down to the bottom floor and enter the code. The probability of the code working is proportional to the amount of progress that was made while in the stealth phase, with a high chance of success if the code is entered in the stealth phase. If the code does not work, then the alarm will sound immediately and there is no longer any point in staying quiet then you will need to start searching for the CFO. If it does work, then the team can easily collect all the diamonds without breaking a sweat.

Find the CFO[edit | edit source]

Search for the CFO, who is hiding either in a closet below the fitness center by the edge of the building, or next to the rectangular stairwell on the 23rd floor. You cannot find the CFO until you are given the objective to find him because the door he is behind remains closed until the objective is active. You must order him up to the roof, and onto the helipad. Once his orange outline disappears, the team may move to a more defensible location, such as the stairs next to the helipad. After some negotiation, the CFO will either give you the code, or refuse and force you to search for Garnet's son, Ralph. If he refuses, Bain kills him by dropping him from the chopper and into the glass dome above the atrium. The probability of the CFO providing the code is proportional to the amount of progress that was made while in the stealth phase.

The two possible locations of the CFO.

Find Garnet's son, Ralph[edit | edit source]

Next you have to find Garnet's son, Ralph. He can usually be found on the roof, or sometimes in the stairwell next to the helipad on the roof. Once you find him, order him onto the helipad, wait for the helicopter, and wait for your contact to get the codes. Garnet unlocks the vault, but there is a small delay while the vault's timelock expires, which takes between 30 seconds to 3 minutes.

The two possible locations of Ralph.

Steal the diamonds[edit | edit source]

Go into the vault, on the bottom floor, and enter it. At this point, you may be able to attempt the "I pushed the button and lived" achievement.

Shoot or melee the glass displays in the vault to take the gems. A faster strategy is to use the GL40 to smash all four displays at once on each side of the room, and reload while picking up the jewels. Bain usually tells you to only steal the center ones and run, but there is plenty of time to take them all.

Escape[edit | edit source]

In Diamond Heist there is no deadline for escape objective. At this point, you may wish to attempt the "Are you ready yet?" achievement.

Go back to the roof while looking out for the escape marker (an orange exclamation point). Most of the time it will be on the roof, but occasionally it will be on the helipad across from the vault; in this case, you must either go back down or wait for Bain to make another trip, which would take 1–2 minutes. Alternatively, you can wait in the vault until the escape marker appears.

Additional rewards[edit | edit source]

  • 37 diamonds, each worth $10K for a total of $370K, are in the vault. 26 of them, found in the middle, must be picked in order to trigger the Escape objective. The other 11 diamonds are located in smaller displays alongside the back wall.
  • 4 necklaces, each worth $25K for a total of $100K, are in the vault beside the pillars.
  • 10 sapphires, each worth $100K for a total of $1,000K, are spread throughout the 22nd and 23rd floors, inside displays that, if not already opened, lock once the alarm is triggered. See the section Are those the blue ones? for details.
  • The big diamond, worth $500K, is found only on Overkill and Overkill 145+ difficulty. It will only spawn approximately 75% of the time. See the section I pushed the button and lived! for details.

Variations & Events[edit | edit source]

Guard Spawning (OVK 145+ only)[edit | edit source]

  • With the noticable increase in guards, the spawning of some guards can be random on each play-through.

Spawn[edit | edit source]

  • The crew can start the heist in various locations on the buildings. This includes 3 possible spawn points on the 23rd floor, and two possible spawn points on the 22nd floor.

Codes[edit | edit source]

  • The codes have a small chance of working on lower difficulties during stealth, while on higher difficulties it is more likely (excluding Overkill 145+).
  • The codes have a higher pecentage of working during stealth than going loud.

Elevators[edit | edit source]

  • On higher difficulties, there is a chance that the elevators opposite of the ones that open for police officers will reveal two bulldozers.

CFO[edit | edit source]

  • The CFO can spawn in two different locations (see above walkthrough).
  • Though purely asthetic, the CFO can spawn with either 1-2 women that can be cable tied, or a man.
  • There is a chance that the CFO will give the codes to Bain during negotiations, though very seemingly unlikely.

Ralph[edit | edit source]

  • Ralph can spawn in two different locations (see above walkthrough).
  • As like the CFO, Ralph has a chance of having a couple usable hostages, or a single male hostage.

​Timelock duration[edit | edit source]

  • The time-lock (if Ralph is needed for negotiations) will have a duration of 30 seconds to 3 minutes.

The Vault Room[edit | edit source]

  • On higher difficulties, the Vault Room has a chance of an ambush happening when the team enters, sending in several Heavy SWAT and special units. The chance of the ambush is more likely if you reach the vault during stealth and have not been spotted yet.

Big Diamond[edit | edit source]

  • The Big Diamond will only spawn in the Vault on Overkill and Overkill 145+ difficulties, and has a 75% chance of spawning.

Escape Area[edit | edit source]

  • There are 4 possible locations where Bain can pick the crew up. 3 of them can be located on the roof (one on the helipad, another just above the work-out room next to the helipad, and the last one located above the party area, next to one of Ralph's spawning points). The last location can be the helipad located directly outside the Vault Atrium.

Security cameras[edit | edit source]

There are 18 cameras: 11 on the 22nd floor, 3 on the 23rd, 2 just inside the main vault and 2 in the big diamond vault. Destroying cameras does not effect stealth. Instead, several sets of cameras have specific effects:

  • 15 cameras are part of one "main set". Destroying half of the main set of cameras and destroying all of the main set of cameras reduces the rate at which special units spawn into the heist (this occurs by changing a complex randomized timer loop mechanic). The cameras in the big diamond room are attached to the main set- unfortunately this means that the effect of destroying all cameras cannot be triggered unless the big diamond vault spawns.
  • Destroying one camera in a floor 23 meeting room near the roof stairs disables a specific shield spawn that blocks that stairway.
  • Destroying the two cameras in the vault entrance does nothing-they are not attached to any heist scripts.

Unique achievements[edit | edit source]

Are those the blue ones?[edit | edit source]

Are those the blue ones?.png

Collect all ten sapphires during the Diamond Heist on Hard difficulty or above. You will have to have played the heist from the start.

For stealth tactics, see above. Each sapphire is found in a glass display case, which locks via a metal shutter as soon as the alarm is triggered. Before a sapphire can be stolen, the player must activate its case and wait five seconds for the sapphire to surface. Once a case is open, it will not close, even after the alarm is triggered; thus, the safest way to unlock the achievement is to open all of the cases whilst ignoring the sapphires until the last case is open.

Sapphire locations


  • Floor 22 (6 total)
    • On the circular walkway, overlooking the helipad
    • On the circular walkway, directly above the vault doors
    • Next to the area under construction and next to the atrium
    • Next to a pillar near the offices below the dance room
    • In a corner of the office immediately below the dance room
    • In between the canteen and the atrium, across from the vending machine
  • Floor 23 (4 total)
    • Between the fitness center and management, near the circular walkway
    • 3 on the circular walkway

Shinobi[edit | edit source]


Complete the heist on hard or Overkill difficulty after bypassing all three alarm boxes without being detected. The achievement will still be awarded if the alarm is triggered between the last alarm box being bypassed and the code being entered. For stealth tactics, see above.

I pushed the button and lived![edit | edit source]

I pushed the button and lived!.png

Steal the big diamond and escape on Overkill difficulty or above with you and all your teammates alive. You will have to have played the heist from the start.

After opening the vault, see if there is a door on the right side of the vault. The door will be there on most playthroughs; it is independent of whether or not the alarm boxes were hacked stealthily, and whether or not the codes work. If the door does not exist, then you cannot unlock this achievement on this run.

If the door exists, then push the red button on the door to open it, and refrain from stealing all the diamonds in the center of the vault so that you do not summon the never-ending assault yet. Walk up to the glass window inside so that the glass cutter spawns, then retrieve it from the crew's spawn point (it will be on the floor, glowing yellow) and attach it to the window.

The glass cutter requires exactly four minutes to finish cutting. It will break if you shoot the window or allow enemies to shoot the window, so defend the main vault during this time and position yourself so that enemies will not accidentally shoot the window.

The easiest way to unlock this achievement is to access the vault stealthily; restart if the codes do not work. Once the big diamond has been found, remain hidden, retrieve the glass cutter and wait it out while hidden. As long as the players remain hidden and all the cameras in the vault are destroyed, the police will not pursue the gang. Do not steal the diamonds in the center of the vault until the big diamond is acquired.

Grabbing the big diamond and making a successful escape always awards an additional $500K.

Are you ready yet?[edit | edit source]

Are you ready yet?.png

Get the helicopter pilot to fly back for you seven times. It can be earned simply by surviving the assault for long enough after stealing the diamonds in the vault. The achievement is unlocked as soon as Bain completes the seventh trip.

There are several defensible locations, such as the vault after destroying its cameras, and either of the staircases that are accessible from the roof.

The achievement can be unlocked while also attempting to unlock the "I Pushed The Button and Lived!" achievement because the helicopter pilot can fly around while the big diamond's display case is being cut if all of the diamonds in the center of the vault are taken.

Bomb man[edit | edit source]

Bomb man.png

Kill all twelve patrol guards with trip mines only. You will have to have played the heist from the start.

Only one player per playthrough can unlock this achievement, and it must be done with one's own trip mines. If playing solo, then you must disable team AI, because bots will kill the guards.

The majority of the guards will congregate near the vault if you run through the lasers and then to the terrace without being seen. Instead of letting the guards trigger each mine, you should plant a mine next to a guard and then detonate it by shooting it.

It is advised that you reach Sharpshooter level 47 before attempting this, because there are more guards to kill than mines to deploy. At level 47, you are given 10 mines, which means you will need two double-kills or one triple-kill. Thick skin is also recommended because of self-damage from the mines.

Community content is available under CC-BY-SA unless otherwise noted.