Diamond Grading

【Mumbai, Indi】GIA Announces New Initiatives for Indian Market

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Editor’s NoteThe Gemological Institute of America (GIA) has launched its Finished Jewellery Report service in India, offering detailed analysis of a…

【USA】GIA Introduces New Grading System for Lab-Grown Diamonds

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Editor’s NoteThe GIA is replacing its traditional 4Cs grading for lab-grown diamonds with new “Premium” and “Standard” descriptive categories,…

【Hong Kong SA】GIA Redefines Lab-grown Diamond Grading Standards: Discontinuation of 4Cs System Enhances Differentiation

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Editor’s NoteThe Gemological Institute of America (GIA) has announced a historic change, stating it will cease using the traditional 4Cs system to…

【USA】GIA, the Authoritative Gemological Institute, Revolutionizes Grading Standards for Lab-Grown Diamonds

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Editor’s NoteThe Gemological Institute of America (GIA) has announced a significant shift in its grading approach for lab-grown diamonds, moving away…

【USA】GIA Redefines Lab-grown Diamond Grading Standards: Discontinuation of 4Cs System Enhances Differentiation Between Natural and Lab-Grown Diamonds

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Editor’s NoteThe Gemological Institute of America (GIA) has announced a historic change to its grading system for lab-grown diamonds, moving away…

【Carlsbad, Ca】GIA Reverting to More General Terminology for Lab-Grown Diamonds

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Editor’s NoteThe Gemological Institute of America (GIA) is simplifying its grading approach for lab-grown diamonds, moving away from specific color…

【USA】GIA to Adopt New Terminology for Lab-Created Diamonds

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Editor’s NoteThe GIA’s decision to adopt new terminology for lab-created diamonds marks a significant shift in the industry, further distinguishing…

【USA】GIA to Discontinue 4Cs Grading System for Lab-Grown Diamonds

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Editor’s NoteThe GIA’s decision to stop grading lab-grown diamonds using the 4Cs system marks a pivotal step in distinguishing them from natural…