While diamonds are the hardest natural substance on earth and can withstand a lot of pressure, they are not indestructible. If enough pressure is applied to a diamond quickly, it can cause the diamond to shatter into pieces. This sudden, hard, and concentrated force can overcome the internal cohesion of the diamond, resulting in breakage.
A car running over a diamond, especially at high speed, can exert enough pressure to cause it to break. The impact from the weight and momentum of a moving vehicle striking the diamond's surface can create cracks or fractures that can eventually lead to it breaking apart. The exact outcome depends on various factors such as the speed of the car, the size and shape of the diamond, the angle at which it is hit, and its internal structure.
Therefore, while diamonds are known for their durability, it's important to protect them from substantial impact or force, including that of a car running over them.
