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Diamond Color
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Diamond color is one of the most important factors to consider, as
it is noticeable to the "naked" eye. A diamond's color is graded by
GIA on an alphabetical scale from D-Z, with D being absolutely
colorless and Z being light yellow. Beyond "Z", a diamond is
considered to be a "Fancy" color. Although many diamonds appear to
be colorless, the many of them have at least a hint of body color.
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Diamond Guide
Diamond Cut
Diamond Color
Diamond Clarity
Carat Weight
Diamond Certification
Diamond Care
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GIA and AGS Color Grading Scale
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Diamond color has a significant impact on its value. To ensure the
highest quality diamonds for your selection GemLogic carries
diamonds in the color range from D-K only. When buying a diamond,
take into consideration that it is often very difficult to detect
the difference between a colorless diamond (D-F) and a near
colorless diamond (G-J), especially when it is mounted in jewelry.
Diamonds with a K-Z color grade usually have yellow shading that
can be detected by the naked eye, however, a well cut stone with
good proportions will still release the brilliance and fire of a
lower colored diamond, dispersing light in such a way so as to
create a beautiful stone.
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The Impact of Fluorescence
Fluorescence is not directly related to a diamond's color. This
separate characteristic refers to the diamond's ability to
fluoresce under ultraviolet (UV) light. Our sun emits some UV
light, but it is usually not great enough to detect fluorescence.
When exposed to UV light, many diamonds will give off a distinctive
glowing blue coloration. Although fluorescence may be displayed in
various colors, blue is the most common in diamonds. The
fluorescence of a diamond is defined by its intensity as either
None, Faint, Medium, Strong, or Very Strong. Although fluorescence
is a characteristic that can be measured, it is rarely an issue
when selecting a diamond and is usually not detectable to the eye.
The impact of fluorescence on price depends on its noticeability.
Faint fluorescence has very little effect on a diamond of any
color, and therefore has no effect on value. For some higher color
stones (D-G), strong fluorescence may give the stone a milky white
appearance, which greatly lowers value. Fluorescence often adds
value to lower color stones, such as I and lower, as it gives the
stones a whiter, brighter appearance.
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