Diamond D color means that the color grade of a diamond is D, which is the highest level of diamond color grade and is completely colorless. Diamonds of this grade are very rare and have the highest quality and price. The color grading of diamonds is generally divided into D, from high to low E、F、G、H、I、J、K、M、N， The closer it is to level D, the better the diamond color.
Diamond color grade
D-level: The color of D-level diamonds is completely colorless, which is the highest level among diamond grades. However, diamonds of this grade are very rare, so the price is also very high.
E-grade: Colorless grade, consumers cannot see any difference with the naked eye. Only professional gemstone appraisers can distinguish the trace elements contained inside diamonds with the help of special machines, so they are also very rare.
F-grade: Both belong to the colorless grade, and jewelry appraisers can see almost no yellow elements, so it is also a high-quality diamond.
G-H grade: close to colorless grade, only by comparing with high-quality diamonds can the difference be seen, so the quality of diamonds is still very high.
I-J level: A small amount of yellow elements can be seen with the naked eye.
K-N level: The yellow element of diamonds can be observed with the naked eye.