|
Guide to Diamond
Grades
|
|
Grade
|
Color
|
Clarity
|
Description
|
|
AA
|
G-I
|
VS1-VS2
|
Small
inclusions, difficult to see with loupe, “eye clean”
|
|
A
|
G-I
|
SI1-SI2
|
Small
inclusions, easy to see w/ loupe, “eye clean”
|
|
B
|
G-I
|
I1
|
Small
eye visible inclusions
|
|
C
|
TLB
|
I3
|
Large
and/or numerous inclusions, not “eye clean”, light brown color (K-M)
|
Oval Shape Diamonds
'A'
Oval Diamond
|
Size
|
Avg.
Weight
|
Price/stone
|
|
1/5CT=4X3APX
|
0.20
|
$315.00
|
|
1/4CT=5X3APX
|
0.27
|
$506.25
|
|
1/3CT=5X4APX
|
0.33
|
$737.55
|
|
3/8CT=6X4APX
|
0.37
|
$846.38
|
'AA'
Oval Diamond
|
Size
|
Avg.
Weight
|
Price/stone
|
|
1/5CT=4X3APX
|
0.20
|
$360.00
|
|
1/4CT=5X3APX
|
0.26
|
$546.00
|
|
1/3CT=5X4APX
|
0.33
|
$804.38
|
'B'
Oval Diamond
|
Size
|
Avg.
Weight
|
Price/stone
|
|
1/5CT=4X3APX
|
0.18
|
$265.95
|
|
1/4CT=5X3APX
|
0.25
|
$403.13
|
|
1/3CT=5X4APX
|
0.31
|
$569.63
|
|
3/8CT=6X4APX
|
0.37
|
$713.18
|
|
