About PGGL

Precision Gem Grading Laboratory (PGGL) was launched in 2007 to serve the needs of the gem industry and consumers using state of the art ImaGem technology and expert gemologists. We specialize in objective diamond grading & independent appraisal services. We appraise jewelry, gems, watches & estate jewelry for insurance & fair market value. All appraisals are by appointment only and done in your presence – while you wait! To schedule your appointment, please call us at 215-774-9406 or send an email to info@pgglab.com.