Editor’s Note
The World Jewellery Confederation (CIBJO) is proposing a significant terminology update, seeking to remove “laboratory-grown” from its official industry guide. This reflects an ongoing effort to align nomenclature with market evolution and regulatory standards.

The World Jewellery Confederation (CIBJO) is proposing to eliminate the term “laboratory-grown” from its definitive industry guide, the Blue Book. This move aims to refine the language used to describe synthetic gemstones and align it more closely with evolving market perceptions and regulatory frameworks.
CIBJO argues that the term “laboratory-grown” may be perceived as limiting or not fully encompassing the technological processes involved in creating these stones. The confederation is considering alternative terminology that more accurately reflects the nature of the products while maintaining clear differentiation from their natural counterparts. This revision is part of an ongoing effort to update the Blue Book’s standards on diamonds, colored gemstones, pearls, and precious metals to ensure clarity and consumer confidence.
The proposal will be reviewed and voted on by CIBJO’s membership. If adopted, the updated Blue Book would set a new benchmark for terminology used in jewelry industry communications, certifications, and disclosures worldwide.
