GJAEDU is Hyderabad's premier expert jewellery testing laboratory, renowned for its precision and reliability. Equipped with cutting-edge technology and staffed by highly trained professionals, GJAEDU provides comprehensive testing services for gold, silver, platinum, and precious gemstones. Our lab specializes in a range of analyses, including purity assessments, alloy verification, ... https://www.instructables.com/member/gjaedu2/?publicPreview=true