In order to cut diamonds at the best angles to produce the most fire, much of the original ideal cut rough is lost, resulting in a great decrease in the diamonds carat weight.
How the diamond rings has been cut, polished and to what proportions and symmetry are important, as these factors determine the life, brilliance and dispersion of the ideal cut. If the cutting factors fall below standard the appearance of the ideal cut is adversely affected.
gold engagement ring are made up of carbon that was buried deep within the Earth under intense pressure and heat. They were made popular because ideal cut are the hardest known substance.