Color diamonds come in almost all the colors of the rainbow. But before moving on to the nomenclature of color diamonds, it is first important to point out that the rarity of a color does not necessarily influence its price.
Indeed, some colors are more attractive than others, and in particular the colors whose names evoke a strong image - red, pink, blue, green, orange, etc. In such cases, the price depends not only on the rarity of the color, but also on the demand for it: the greater the demand, the higher the price. Conversely, beautiful grey diamonds are rarer than many other colors, but cost a lot less as the demand for them is currently much weaker. In the same way, colors that laboratories have defined with composite names (orange brown, gray or grayish-blue, yellow orange, orange pink…) are less sought and relatively less expensive, in spite of their rarity.
As a general rule, all beautiful color diamonds are rare, be they defined by a single word (black, brown, blue, pink, green, yellow) or by two words. "Greenish-yellow" diamonds would be a lot more in demand if they were re-named "lime"!