This grade reports distribution and hardness of inclusion in the diamond.
Distribution of Inclusions is classified as:
C
Concentrated
Grouped inclusions
S
Scattered
Dispersed inclusions
Inclusion intensity (Light or Hard | Transparent or Opaque) is classified as:
Very Light and Light Inclusion
Moderate Hardness Inclusion
Very Hard Inclusion
The combination of distribution and intensity results in the final Inclusion Pattern grade, as below:
S1
Scattered Light Inclusion
S2
Scattered Moderate inclusion
S3
Scattered Hard Inclusion
C1
Concentrated Light Inclusion
C2
Concentrated Moderate Inclusion
C3
Concentrated Hard Inclusion
Sample price difference:
-7-6-5-4-3-2-101234567
S1
2 to 4
S2
0
S3
-7to-3
C1
2 to 3
C2
-5 to -2
C3
-7to-5
Discount
Premium
Indicative price variations across diamonds with different Inclusion Pattern grades, while all other parameters remain constant, are illustrated above.
