Solitaire Diamond Rings: Certification and Grading

This is one reason why diamonds are known for their incredible brilliance. Polish may deteriorate in used or pre-owned diamond and should be something to watch out for.Grades for polish range from Ideal (which is very rare) to Excellent, Very Good, Good, Poor, and Fair. We consider Good polish to be the minimum for solitaire diamond rings. Polish is not as important as symmetry, though, so don’t get too hung up on this detail. Most other parameters will affect the visual properties of the stone a lot more than polish, as long as it is rated at least good.Fluorescence Some diamonds have a natural blue fluorescence under ultraviolet light. This is natural. How does fluorescence affect the beauty or value of solitaire diamond rings? GridleThe girdle of a diamond is the middle, or widest part, of the diamond, and is measured from ;extremely thin; to ;extremely thick;. Thin girdles are prone to chipping. Extremely thick girdles hide a lot of weight, so you end up paying for a heavier diamond that doesn’t look that big. When examining the girdle, make sure that it is well-faceted and polished, since some diamond cutters will omit this step to save time and to avoid removing weight from the stone.PolishDiamonds are capable of taking a polish better than any other material on earth. This means that the solitaire diamond rings can be polished to have the most perfect, reflective su***ces.