The diamond is on the table close to the main building in the center of the base.
The diamond is on the table in one of the barracks.
The diamond is on the floor, close to the black cupboard in the basement of the multi-storey building, nearby the stairs.
The diamond is on the ground among the barrels, heavy equipment and machines which are close to the main entrance to the military base.
The diamond is in the tunnel located under the bridge leading to the military base.
This diamond is among rocks at the foot of the elevation, over which the main road runs.