GIA Gem Identification Lab Manual 1992

2007 GIA Diamond Grading Lab Manual

GIA Essential Colored Stones Reference Guide 1999 Gemological Institute America

GIA Gem Identification LAB MANUAL 2005 Current Reference Textbook ~ Like New

GIA COLORED STONE ESSENTIALS ILLUSTRATED 8 ASSIGNMENTS LIKE NEW

GIA Essential Colored Stones Reference Guide 1999 Gemological Institute America

BJU Press Earth Science Lab Manual 4th Ed High School Terry Blacklin 2007

GIA Diamonds Course Audio Tapes Complete Set 1–22 Gemological Institute