Welcome to the STAR Gem Testing Lab! At STAR Gem Testing Lab (SGTL), we are dedicated to providing accurate and reliable gemstone testing and certification services. With our state-of-the-art facilities and a team of highly skilled gemologists, we strive to offer the highest standards of gemstone analysis, ensuring trust and confidence in the gemstone industry. At STAR Gem Testing Lab (SGTL), we are dedicated to providing accurate and reliable gemstone testing and certification services. With our state-of-the-art facilities and a team of highly skilled gemologists, we strive to offer the highest standards of gemstone analysis, ensuring trust and confidence in the gemstone industry.