Mark of Trust
Faith Grading System
Shape
Round
Oval
Pear
Marquise
Heart
Cushion
Cushion B
Emerald
Princess
Sq Radiant
L Radiant
Other
CARAT
30s Down
30s
40s
50s-60s
70s-80s
90s
1ct
1.5ct
2ct
3ct-4ct
5ct
5ct - 99.99ct
Clarity
FL
IF
VVS1
VVS2
VS1
VS2
SI1
SI2
SI3
I1
I2
I3
Color
D
E
F
G
H
I
J
K
L
M
N
O-P
Q-R
W-X
Y-Z
cUT
EX
VG
GD
F
Excellent
Very Good
Good
Fair
Polish
EX
VG
GD
F
Excellent
Very Good
Good
Fair
Symmetry
EX
VG
GD
F
Excellent
Very Good
Good
Fair
WHITE INCLUSION BASE(WT)
N(WT0)
NV
WT1
WT2
WT3
None
None Visible
Minor
Medium
Major
BLACK INCLUSION BASE(BT)
N(BT0)
NV
BT1
BT2
BT3
None
None Visible
Minor
Medium
Major
MILKY
N(M0)
NV
M1
M2
M3
None
None Visible
Minor
Medium
Major
OPEN BASE
Grade
N(WC0/WT0)
NV
CO1
TO1
CO2
TO3
CO3
TO3
Inc. Type
Open
Open
Open
Open
Open
Open
Open
Open
Location
--
--
Crown
Table
Crown
Table
Crown
Table
Description
None
None Visible
None
None
None
None
None
None
Fluorescence
FL Grade
N
FNT
MED
STG
VST
Description
None Fluorescence
Faint Fluorescence
Medium Fluorescence
Strong Fluorescence
Very Strong Fluorescence
Color Shade
Grade
N
NV
BRN1
BRN2
BRN3
Color Shade
WH/OF WH/YL
Brown/Grey/Pink
Brown
Brown
Brown
Description
-
None Visible
Faint
Light
Dark
EYE Clean
Grade
EC1
EC2
EC3
V
%
75% - 100%
50% - 74%
25% - 49%
0% - 25%
Description
Sure
Medium
Medium
Inclusion Visible
HEART & ARROW BASE
Grade
EX
VG
NV
V
%
75% - 100%
50% - 74%
25% - 49%
0% - 25%
Description
Ex H&A
VG H&A
None Visible
None
LAB
GIA
IGI
HRD
EGL
IIDGR
AGS
FAITH
FM
FMI
FMG
FMG/I
Gemological Institute of America
International Gemological Institute
Hoge Raad voor Diamant
European Gemological Laboratory
International Institute of Diamond Grading and Research
American Gem Society
Hari Krishna Export's Certificate
Forever Mark
Forever Mark Inscribed
Forever Mark Grading
Forever Mark Grading / Inscribed
ROUGH ORIGIN
CM
CME
FM
FMG
FME
FMI
Canada Mark
Canada Mark Eligible
Forever Mark
Forever Mark Grading
Forever Mark
Forever Mark Inscribed
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