GIA Essential Colored Stones Reference Guide 1999 Gemological Institute America

GIA Gem Identification Lab Manual 1992

GIA Diamond Grading ~Lab Manual 2007

2007 GIA Diamond Grading Lab Manual

GIA Diamonds vol II 2 Textbook 1971 ??Gemological Institute of America Manual

GIA Essential Colored Stones Reference Guide 1999 Gemological Institute America

GIA 1994 Education Catalog Gemological Institute of America Gemstone Diamond