DEEP DIVE LIBRARY
Diamond Education
Diamond Reports
Diamond Grading Certifications
GIA Gem Trade Laboratory
The Gemological Institute of America are the creators of the International Diamond Grading System. The definition of the 4 C's as the world knows it today was set by GIA...
Diamond Reports
The Rapaport Diamond List
Introduction to the Rapaport List
What is the Rapaport list?
In the early 1980s, speculation in the market caused the creation of dubious certification offices and unreliable ...
