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ABOUT US
ORGANIZATION
CORPORATE
WORLDWIDE BRANCHES
LEGAL & ACCOUNTING
CUSTOMS & SECURITY
PRECIOUS MINERALS
GRADE SCALE
PRECIOUS MINERALS
ARCHIVES
MINING SERVICES
KIMBERLEY
SPECIAL MISSIONS
MINING SUPPORT
LENDING CLUB
INVESTMENT
CONTACTS
Grade Scale
GIA Clarity Grading Scale
GIA Clarity & Color Grading Scale
GIA Color chart
GIA Typical Color Grades
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