How to choose colored diamonds? All diamonds are classified according to the international 4C standard. So, when we choose color diamond, must understand color diamond 4C standard. How to choose colored diamonds? All the conditions of color diamonds are mainly around the color, all of the 4C standard color has been presented as the core, therefore, color diamond 4C standard, color accounted for 60% , cutting and fluorescence accounted for 20% , clarity accounted for 10% , 10% by weight. How to choose colored diamonds? Color selection, color grading diamond should pay attention to three points: diamond color, diamond color saturation (concentration) , color diamond tone (decoration color) . The common colored diamonds are pink, yellow, blue, green, etc. . Different colored colored diamonds have different values. Among these colored diamonds, red, blue, pink, etc. are extremely rare, therefore, the color of diamonds are treasures in the diamond, according to the price arrangement is like this: Red Diamond, Blue Diamond, Pink Diamond, Green Diamond, Orange Diamond, Gold Diamond, colorless diamond, Brown Diamond. Red diamonds are therefore the most expensive of the colored diamonds, while tan diamonds are the cheapest. The color saturation levels of colored diamonds range from low to high with Fancy Light, Fancy, Fancy Intense, Fancy Deep, Fancy Vivid Color diamonds are most valuable in solid color.