At GGS, it is our privilege to appraise your wholesale and retail jewelry to ensure you are able to sell your pieces at their best value. Our Master Gemologist Appraiser and gemological team only practice the most meticulous, internationally accepted standards. At GGS, we promise to offer you a certified appraisal that will give you peace of mind when it comes to selling your jewelry at the most up-to-date and accurate price.