Diamond Ore is a type of mineral found in the Earth's crust that contains diamonds. It is typically formed deep underground under high pressure and temperature conditions. The most common type of diamond ore is kimberlite, which is a volcanic rock that can transport diamonds from the mantle to the surface. When mined, diamond ore is processed to extract the valuable diamonds. This involves crushing the rock and using various methods to separate the diamonds from other materials. The diamonds can then be cut and polished for use in jewelry and industrial applications.