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“Decoding Diamond Grading: IGI vs GIA – Understanding the Key Differences”
Introduction Gemstone certifications play a crucial role in determining the quality and value of precious stones in the market. Among the most renowned certification bodies, the International Gemological Institute (IGI) and the Gemological Institute of America (GIA) stand out for their rigorous evaluation processes and global influence. Overview of IGI Founded in 1975, IGI has […]
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