SJTA Gemlab is a professional gemstone laboratory based in Bali, Indonesia, dedicated to providing gemstone identification and testing services. Located in one of the world's most vibrant cultural and jewelry hubs, SJTA Gemlab supports jewelers, traders, collectors, and enthusiasts by delivering trusted analysis and certification for a wide range of gemstones.
As a proud member of the International Gem Society (IGS), SJTA Gemlab upholds international standards in gemological practices. The laboratory is led by an IGC-certified gemologist. With up to standard gemological equipment and a commitment to transparency, SJTA Gemlab offers clients the confidence they need when buying, selling, or appraising gemstones in Bali and beyond.
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