To help the gem consumer understand what a gem is, ie its nature, whether it is man-made or not, and whether it has been treated or not, gem specialists debate the correct wording or nomenclature to be used so that the consumer can buy with confidence.
This debate on the most useful wording to describe gems has endured for decades. Gemmologists look toward CIBJO and other industry organisations for guidance. A group of gem laboratories publish Information Sheets to explain wording used on gem laboratory reports. The latest sheets can be read here.
This debate on the most useful wording to describe gems has endured for decades. Gemmologists look toward CIBJO and other industry organisations for guidance. A group of gem laboratories publish Information Sheets to explain wording used on gem laboratory reports. The latest sheets can be read here.
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