4Cs download.pdf
-
Upload
john-heaney -
Category
Documents
-
view
216 -
download
0
Transcript of 4Cs download.pdf
-
7/24/2019 4Cs download.pdf
1/5
Cut Color ClarityCarat
The 4 Cs
Guidefrom
the
-
7/24/2019 4Cs download.pdf
2/5
The color scale for diamonds ranges from D
(colorless) to Z (light yellow/brown). Although
there are colorless diamonds, most diamonds
used in the jewelry industry are nearly colorless
or have tints of yellow as truly colorless diamonds
are extremeley rare.
The gradients are determined by comparing
each diamond to a master set, and each letter
grade represents a certain color.
C olor The color scale for diamonds ranges from D
(colorless) to Z (light yellow/brown). Although
there are colorless diamonds, most diamonds
used in the jewelry industry are nearly colorless
or have tints of yellow as truly colorless diamonds
are extremeley rare.
The gradients are determined by comparing
each diamond to a master set, and each letter
grade represents a certain color.
C olor
-
7/24/2019 4Cs download.pdf
3/5
The play of light within a diamond is
based on its proportions. On the GIA
scale the cuts range from excellent
to poor. This ascpect accounts for the
overall beauty of the diamond and
gives it its brilliance, with three attributes
contributing to it.
This rst is Brightness, which is the
combination of all white light re ecting
from the interior and surface.
The second is Fire, which describes the
are color emitted from the diamond.
The third is Scintillation, which refers
to the ashes of light seen when a
diamond hits the light.
C ut
-
7/24/2019 4Cs download.pdf
4/5
The clarity of diamonds in measured in eleven
grades ranging from awless to I . Since diamonds
are formed under such immense pressure and
heat, it is extremely rare to nd one that lacks any
internal and external characteristics.
Such characteristics are a by product of its
formation and help gemologists separate naturally
formed diamonds from ones that are made
synthetically, and help identify individual stones.
C larity3
-
7/24/2019 4Cs download.pdf
5/5
Perhaps the most obvious feature of a diamond
(and maybe even its most important) is its weight.
According to industry standards, one carat is
equivallant to 200 milligrams in weight. For diamonds
that are under one carat, it is divided into 100 points.
For example, .75ct = 75 points and 1/2ct = 50 points
C arat