A Natural Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. At room temperature and pressure, another solid form of carbon known as graphite is the chemically stable form of carbon, but diamond almost never converts to it.
Diamond has the highest hardness and thermal conductivity of any natural material, properties that are utilized in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth.
Laboratory Grown diamonds, also referred to as 'man-made,' 'created' or 'synthetic' diamonds, are diamonds manufactured in a laboratory, as opposed to natural diamonds, which formed within the Earth.
The IGI Laboratory Grown Diamond Report provides the same information as the IGI Diamond Report but the color of the report is yellow. The laboratory grown diamond's girdle is also laser inscribed with the report number as well as the words "lab grown." These steps are taken in the interest of clear delineation for consumers.