Susan Butt
Designer, Art Director, and Mother in the United States
Gemologocal Science International (GSI) Co-Founders Debbie Azar and Mark Gershburg discuss the importance of educating the end consumers about Diamond Grading
Gemologocal Science International (GSI) Co-Founders Debbie Azar and Mark Gershburg discuss the importance of educating the end consumers about Diamond Grading