It is said that diamonds are eternal, but to those in the know, they are also unique. This is because apart from their weight (ie. the number of carats), insiders understand their other properties. In fact, the value of a stone also depends on its clarity, color, and the shape of the stump. In international diamond terminology we talk about the four "Cs" from which the real price of diamonds unfolds, regardless of whether they are investment diamonds or jewelry. In the diamond price tables we will introduce you to this quartet used for the pricing of diamonds - carat, clarity, color and cut.