Color diamonds are not only beautiful but also very rare, so is very expensive. Some advisers estimates that only 2% of the original diamond is color. They can exist in almost all sorts of color. Red, green, purple drill and orange drilling is usually the most rare color, followed by the pink diamond, one of the most popular color! Blue diamond, too. Yellow diamonds and brown drill are common. Diamond is so unique that they will change the color of diversity, therefore developed to evaluate color quality system. GIA diamond color grading system considering the color, hue and saturation. Diamond's value is determined by the color intensity and purity, ranging from fuzzy to fancy vivid. Hollywood fully spawned a craze for colored diamonds, more and more famous people choose to wear colored diamonds. Now want to more people will choose diamond jewelry, fashion consultants will be very happy to help you buy diamond jewelry set.