A diamond's visual performance needs to be considered using strict guidelines to ensure maximum brilliance. The combined impact of factors such as girdle, width, culet size and polish impact on the diamonds look. The Superior Diamond Grade set by Narandas takes these factors into account and ensures that the highest amount of light enters the diamond, producing superior sparkle and brilliance. The exact parameters of the Superior Diamond Grade are a well-kept secret known only by members of the Narandas family.