If a human being were to eat a diamond, the diamond would most likely pass through the digestive system intact and be expelled in the feces. Diamonds are incredibly hard and chemically stable, which means they are not easily broken down by the body's digestive enzymes.
The human digestive system is designed to break down organic matter and extract nutrients from it. It is not capable of breaking down non-organic substances like diamonds. Therefore, the diamond would not be digested, dissolved, or absorbed by the body.
However, it is crucial to note that consuming non-food items like diamonds can be extremely dangerous and is not recommended. Swallowing non-food objects can lead to serious complications, such as choking, intestinal blockages, or other health issues. If someone accidentally swallows a foreign object, they should seek immediate medical attention.