The diamond images above are exposed to a strong ultraviolet light source. The light
intensity is identical for all photographs. All diamonds are colorless.
Each of the five grades, i.e. from FL0 (no fluorescence) to FL4 (very strong fluorescence)
directly impact the overall color and hence the price of the diamond. This is explained
in the example below:
|
Shape
|
Size
|
Color
|
Clarity
|
|
Fluorescence
|
|
|
|
Pricing
|
|
Difference from
|
|
First pointer (%)
|
|
|
Round
|
2.019
|
G
|
VVS1
|
EX
|
|
no fluorescence
|
|
faint
|
|
medium
|
|
strong
|
|
very strong
|
|
|
|
The table above indicates the price difference between grades while other parameters
remain constant. The prices are subjected to individual grade and market trends.
Fluorescence Color
Fluorescence can be of different colors depending on the nature and type of bonds
that other elements form with carbon atoms of a diamond crystal. Fluorescence colors
like white, blue, yellow, orange and green have direct impact on the overall color
and price of a diamond.
*The above mentioned detail parameters are used for pricing purposes only.