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