Only 30 percent of the world’s diamonds are applicable for jewelry production. Diamonds, after being mined, are sorted for jewelry such as diamond rings or industrial purposes. Those chosen for jewelry purposes are prepared by cutting and polishing the stones for jewelry production. Within this small fraction of available gems are diamonds of different classes. Categorized based on the familiar four Cs of Clarity, Color, Carat weight, and Cut, the combination of these factors will determine the price of each piece of diamond and as such prices for diamond rings can and will vary.