The diamond is under a locker on the left side of the platform, on level 0 (turn left immediately after getting off the bridge.
The diamond is on the highest level of the platform near the two cranes.
The diamond is inside the vents running along the wall. To get inside, reach the top of the platform, then descend through a pipe right next to you.
The diamond is located on a small canopy below the pipe and the ventilation system - they were mentioned in the description of the previous one.
The diamond is placed on a pipe, inside a corridor above the 1st floor. You have to climb other pipes or use the stairs to reach it.
The diamond is located on a pipe, on the third floor.
The diamond is on a footbridge near the pipe on the third level (near the top of the structure).
The diamond is on the ground, near the portable elevator in the central depression of the platform (at the top of the structure).
The diamond is on the ground next to a cylindrical tank on top of the structure (the right corner, looking from the bridge).
The diamond is on the bridge, near the stairs between a platform in the corner and the central depression.
The diamond is on the ground by the wall of the white building on one of the higher floors of the platform (near the stairs).
The diamond is on the ground between the railing and a white device on the platform where you found the previous one.
The diamond is on the ground by the ventilation pipe going through the platform (a balcony of some sort) hanging on the wall of the building. To reach it, jump down from a higher level.
The diamond is on the ground near a gas cylinder, in a narrow corridor on the higher floor of the platform.
The diamond is on the ground between the railing and the locker on a platform near the landing pad.
The diamond is on the ground next to a container on the last platform of the structure (near the landing pad).
The diamond is on the ground in a niche with a door unavailable for us. The described place can be found on the central area surrounded by all platforms and buildings in this location.
The diamond is on the ground between a giant white sphere (a special container) and a vent - both of these are located on the highest platform here.
The diamond is inside a pipe going down through the platform mentioned in the previous description.
The diamond is on the ventilation shafts placed along the wall of the platform on the left of the end of the main bridge. To reach them, you can jump down from the aforementioned pipe or use the stairs.