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WebGIA ® (Gemological Institute of America) is a nonprofit composed of cutting-edge scientists and educators dedicated to upholding gem and jewelry standards for the grading, identification and manufacturing of diamonds, colored stones and pearls. Our expertise is not just a profession to us, but a passion, which is one among many reasons that ... WebSep 26, 2024 · Given the discrepancies of the above certification labs, I would suggest using GIA and AGS labs as the standard caliber for grading your diamond. So whenever you go shopping online, always check for … fish tank opengl
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