International Testing Lab Gems and Jewellery employ the latest technology and advanced scientific method for gemstone identification and diamond grading. It provides services for gemstone treatment identification as well as origin identification international benchmarks. ISO 9001:2008 Certified ITLGJ has designed a standardized nomenclature in accordance with the CIBJO criteria. Thus, their certification carries high significance in the international gemstone trade. We, at Navratan, present the widest section of ITLGJ-certified gemstones for sale.