ITLGR or International Testing Laboratory & Gems Research Center is an ISO 9001:2015 certified gem testing laboratory located in Jaipur. Besides Gemstone Identification, it facilitates Gemstone Origin Identification, Gemstone Treatment Identification, and Diamond Grading services. This organization holds a team of highly qualified gemologists and is renowned for maintaining international standards for testing gemstones. Thus, ITLGR certificates provide assurance to both buyers and sellers. Navratan holds utmost pride in carrying the largest assortment of ITLGR-certified gemstones online.