Would you believe it's actually not perfect? When buying a diamond or an engagement or wedding ring, the key to buying is understanding how much you CAN get away with in terms of color and clarity without noticing a difference once you take the diamond home. Remember, diamonds are broken down by extremely minute differences, and when comparing loose diamonds, even the most trained eye can have a difficult time ascertaining the difference between two color categories, let alone once mounted in platinum or even more so yellow gold.