All four factors are equally important in determining the final cost of a diamond.
Diamond grade. For this reason the same grading lab might even give you another color grade when grading the diamond at a later point in time. Shopping for the precious gems however can be overwhelming. Every diamond certified by the gia undergoes a thorough independent evaluation. 3m diamond grade prismatic reflective sheeting with nearly twice the reflectivity of lower grade signage material helps create more visible road signs traffic control devices road construction signs and vehicle markings.
The gia diamond grading report includes an assessment of a diamonds 4cs color clarity cut and carat weight along with a plotted diagram of its clarity characteristics and a graphic representation of the diamonds proportions. G h as opposed to a specific grade the diamond is not certified by gia. Diamond used to be graded like gemstones on a range that included aaa aa a and b so the new scale started at d to avoid confusion. The criteria for diamond grading most respected internationally was developed by the gemological institute of america the gia.
Each of the four cs carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades. If while shopping for a diamond you are ever given a color range eg. A lower color diamond with a higher cut grade will have more sparkle and visual appeal than a higher color diamond with a lower cut grade. While the clarity can significantly impact a diamonds value its one of the most important 4 cs imperfections typically cant be recognized by the naked or.
Diamonds are beautiful meaningful and forever. If a diamond possessing the finest diamond cut grade is also colorless free of inclusions and blemishes and weighs one carat it would be written as. Here you will learn how gia diamond grades are established and how those grades affect the diamonds price. Not only do you have to choose the right cut style and color for the person for whom you are shopping you must decide which diamond is the best value.
This color chart shows how the color of a diamond changes visually across the scale. The fewer inclusions and blemishes the diamond has the better the clarity grade. For standard round brilliant cut diamonds falling in the d to z color range. When writing the grades of a diamond using the ags scale diamond cut grade is first then diamond color clarity then carat weightin that order.
The 4 cs when referring to diamond value are color clarity carat weight and cut. In the letter grade diamond color scale d colorless is the highest and best grade and z is the lowest.
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