Essential for jewelers , gemologists , and enthusiasts requiring equipment for professional gemstones evaluations and certification processes Perfectly suited for at home jewelry inspections , in store appraisals , or field assessments during gemstones sourcing expeditions Professional Diamonds Girdle Code Readers with advanced electronic technology for precise gemstones identification , ideal for diamonds , jades , , and crystal verification Weighing only 744g , this portable analyzers combines laboratory grade precisions with strong construction for seamless use across gemological applications Crafted from ABS with anti resistance and a digital display , this lightweight tool ensures accurate measurements and long lastings, Manufacturer: TSMORY