SJTA Gemological Laboratory
SJTA Gemological laboratory 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 IGS-certified gemologist. With up to standard gemological equipment and a commitment to transparency.
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