Diamond Color Versus Cost
The value of a natural color diamond is determined by a number
of factors, the most important being the face up appearance and
rarity of the color. More common colors such as gray, brown and
yellow will generally have lower cost than rarer natural color
diamonds. Colors that appear less frequently in nature such as
pink, blue, green, purple and orange are more valuable. The rarest
known and most expensive color of all is red.
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