Information about the 4 C 's to Diamonds - The Carat Weight
What does the Carat Weight of a diamond, an important category in the 4C 's, mean? A Carat is a standard unit of weight for diamonds. Carat weights are also expressed as "points" with a one carat diamond equalling 100 points. The term 'carat' is often misunderstood to mean the size of a diamond. The size of a diamond relates to the dimensions of diamonds in terms of length, width and height. As the carat weight is a unit of measure, and not size, two diamonds both weighing 1 carat may appear to be different sizes! The final size of a 1 carat diamond depends on how it is cut. Some diamonds will have extra weight on the bottom part, or pavilion and therefore appear smaller. A well cut diamond will sometimes appear larger than many diamonds of a heavier carat weight.
Information about the 4 C 's to Diamonds - The Cut
The Cut of a diamond, an important category in the 4C 's, refers to two separate factors. The first factor relates to the shape and style of the cut e.g. Pear, Round, Marquise, Princess, Brilliant Heart shaped etc. The second factor is the way the rough diamond is cut to produce a polished diamond. The effects of a good diamond cut result in the heightened levels of brilliance, fire, sparkle and luster of a diamond. A diamond cuts with good proportions reflect more light and appear to look better than other diamonds of higher clarity and appear to look 2 or 3 grades higher than the actual color. The quality is also dependent upon the cut of the diamond facets.
Information about the 4 C 's to Diamonds - The Clarity
The Clarity, another important category in the 4C 's, relates to exactly how clear a diamond is and describes the presence, or absence, of Diamond Inclusions (flaws) within the diamond and any blemishes on its surface. Inclusions disrupt the flow of light in the diamond so that some of light reflected will be lost. The numbers, sizes, colors, locations and visibility of any inclusions or blemishes can effect the relative clarity of a diamond and its quality. The majority of diamond inclusions cannot be seen by the human eye so systems have been developed to grade diamond clarity as detailed in a Diamond Clarity Chart.