Diamond Girdle Size
The diamond girdle is the outer edge of the diamond, where the top, or crown meets the bottom, or pavilion. There are thre posible girdle forms:1. Faceted — this is a series of polished sides around the perimeter of the diamond. 2. Bruted — this is a single continuous unpolished surface going around the circumference of the diamond. 3. Polished — this is just a bruted girdle that has been polished. The width of the girdle often varies at different points around the diamond, and is therefore described as being within a range designating the thinnest and thickest points along the girdle.The girdle can impact a diamond in the following ways: 1. The thickness of the girdle affects the relative position of the surrounding facets, and so can impact cut. Because girdle width is already factored into the diamond's overall cut grade, a diamond graded as well cut will produce superior brilliance, fire, and scintillation, even if the girdle itself is not in the ideal Thin-Slightly Thick range of width. 2. A thicker girdle will add weight to a diamond, thereby increasing its price. Since a thick girdle adds depth to a diamond but not width, a thick girdled diamond will not appear any larger when viewed from the top (e.g. when set in a piece of jewelry), despite the additional carat weight. The effect on carat weight and price is minimal, but real. 3. An Extremely Thin girdle is more susceptible to chipping, and for that reason should be avoided for diamonds that are to be set in a ring. Earrings or pendants are less exposed to rough contact and so are less susceptible to chipping around the girdle.