Grading Terminology

BLACK INCLUSION

NONE NO BLACK INCLUSION
LIGHT PINPOINT BLACK INCLUSION- NOT VISIBLE TO NAKED EYE
MEDIUM MINOR/SPREADED BLACK INCLUSION -EYE CLEAN
HEAVY MEDIUM/VISIBLE BLACK INCLUSION(NOT EYECLEAN) CAN BE SEEN WITH A LOUPE
VERY HEAVY PROMINENT BLACK ( Viewable by naked eye without loupe) NOT EYECLEAN

LOCATION OF BLACK INCLUSION

TAB TABLE
CEN CENTRE
CRN CROWN
GRDL GIRDLE
PAV PAVILLION
CULET CULET

TABLE INCLUSION

NONE NO INCLUSION ON TABLE OR IN CENTRE
LIGHT MINOR INCLUSION ON TABLE OR IN CENTRE
MEDIUM MEDIUM INCLUSION ON TABLE OR IN CENTRE ( with close inspection can be viewable through naked eye)
HEAVY PROMINENT INCLUSION ON TABLE OR IN CENTRE (viewable through naked eye)
VERY HEAVY MAJOR INCLUSION ON TABLE OR IN CENTRE (viewable through naked eye)

OPEN INCLUSION

NONE NO OPEN INCLUSION
LIGHT HAIR LINE OPEN INCLUSION
MEDIUM SMALL OPEN INCLUSION
HEAVY MEDIUM OPEN INCLUSION

LOCATION OF OPEN INCLUSION

TAB TABLE
CRN CROWN
GRDL GIRDLE
PAV PAVILLION

MILKY

NONE NO MILKY
LIGHT SLIGHTLY MILKY
MEDIUM MEDIUM MILKY
HEAVY HEAVY MILKY

INCLUSION REPORT

PP1 MINOR PINPOINT INCLUSION
PP2 MEDIUM PINPOINT INCLUSION
CLR1 MINOR CRYSTAL INCLUSION
CLR2 MEDIUM CRYSTAL INCLUSION
FTR1 MINOR FEATHER INCLUSION
FTR2 MEDIUM FEATHER INCLUSION
FTR3 HEAVY FEATHER INCLUSION
CLD1 MINOR CLOUD INCLUSION
CLD2 MEDIUM CLOUD INCLUSION
CLD3 HEAVY CLOUD INCLUSION
TW1 MINOR TWINNING WISP
TW2 MEDIUM TWINNING WISP

EYECLEAN

- QC PENDING
YES INCLUSION NOT VIEWABLE BY NAKED EYE
NO INCLUSION VIEWABLE BY NAKED EYE (Without loupe)

LUSTER

EX EXCELLENT LUSTER
VG VERY GOOD LUSTER
G GOOD LUSTER

CULET

NONE NONE
VSM VERY SMALL
SML SMALL
MED MEDIUM
SLG OBVIOUS
LRG VERY OBVIOUS
VLG VERY LARGE
ELG EXTREMELY LARGE

TINT

C1++ VERY VERY SLIGHT BROWN TINT
C1+ VERY SLIGHT BROWN TINT
C1 SLIGHT BROWN TINT
C1- VERY VERY LIGHT BROWN TINT
C2+ VERY LIGHT BROWN TINT
C2 LIGHT BROWN TINT
C2- MEDIUM BROWN TINT
C3 BROWN TINT
C4 DARK BROWN
C5 CHAMPAGNE BROWN
C6 DARK CHAMPAGNE BROWN
C7 COGNAC BROWN
G1++ VERY LIGHT GREY TINT
G+ LIGHT GREY TINT
MXD MIXED TINT
MT1+ VERY SLIGHT BROWN AND GREEN
MT1 SLIGHT BROWN AND GREEN
MT1- LIGHT BROWN AND GREEN
MT2 MEDIUM BROWN AND GREEN
MT3 HEAVY BROWN AND GREEN
ROM GREEN
PINK PINK

HEART AND ARROW

EX EXCELLENT HEART AND ARROW(90%-100%)
VG V.GOOD HEART AND ARROW(75%-89%)
NA (HEART AND ARROW BELOW 75%)