Friday 5 August 2011

The 5Cs and things to know about Diamonds Cut

The cut of a diamond refers to its proportions. Of the 5c's,the cut is the aspect most directly influenced by man. The other three are dictated by nature. Quite often the cut of a diamond is confused with its shape. Diamonds are cut into various shapes, depending upon the original form of the rough. Whatever the shape, a well-cut diamond is better able to reflect light. A diamond's ability to reflect light determines its display of fire and brilliance. Diamonds are usually cut with 58 facets. These facets follow a mathematical formula and are placed at precise angles in relation to each other. This relationship is designed to maximize the amount of light reflected through the diamond and to increase its beauty.

The cut, or proportions, of a diamond is measured in percentages relative to the diameter of it's girdle. The girdle diameter of each diamond is always considered 100%. The table and depth percentages are the key to determining good proportion Diamond's brilliance comes from the quality of its cut. To be considered well cut, a diamond must have the right proportions, symmetry and polish. A well-cut stone is carefully crafted and polished until it sparkles. Its brilliance and fire are apparent because the stone delivers the maximum amount of light passing through it to the eye.

The earliest record of diamond-polishing (with diamond powder) is Indian, and probably dates from the fourteenth century. There are also contemporary references to the practice of diamond polishing in Venice. The earliest reference to diamond cutting is in l550 in Antwerp, the most important diamond center of the period, where a diamond-cutters' guild was soon to be established.