Do you think freezing a peanut butter covered piece of coal creates a diamond? Check out this video to find out! Diamonds form in the Earth’s mantle under extreme heat and pressure. The diamonds are then delivered to the Earth’s surface through rare volcanic eruptions, which carry some of the Earth’s mantle to the surface. We are not recreating this process by covering coal in peanut butter and freezing for 24 hours! It’s easy to fake this experiment by swapping out the piece of coal for a piece