White diamond is actually a somewhat misleading term. Most commonly called colorless diamonds, white diamonds are graded by their lack of color on a scale from D-Z with D being a flawless diamond. The lower the diamond is on the scale the more pronounced the shades of yellow will be in the gem. Diamonds graded lower than K will show noticeable color. Found all around the world, white or colorless diamonds are generally graded by the 4Cs: cut, clarity, color, and carat. There is a reason why these diamonds are the most well known – they are classic, timeless, and beautiful.