http://www.articleheaven.net en-us editorial@articlealley.com The Colour Grades Of Diamonds In terms of the 4Cs of diamonds, shade, or lack of it, is an particularly important characteristic. Diamonds are given letter grades to indicate the extent of colour, starting with the letter D for a flawless, colorless d... http://www.articleheaven.net/the-coloration--grades-of-diamonds-1688280.html 09th August 2010