Meet Justin

GES was founded by Justin E. Koop, a third-generation jeweler, to provide affordable appraisals for his clients. Justin is a 2006 GIA Graduate Gemologist. Since 2006, Justin has completed thousands of appraisals for the general public, other jewelry stores, charities, government agencies and many other organizations. While still owning and operating the family business, Koop Diamond Cutters, Justin found a need for an independent appraisal organization. This helps keep the focus on appraising and not buying and selling of the items directly.