Industry News‎ > ‎

CIBJO releases updated version of Gemstone Book

posted May 24, 2010, 7:05 AM by Alex Barcados

Milan, Italy: May 24, 2010 -  On the heels of the Precious Metals Book, CIBJO, the World Jewellery Confederation, announced they have completed and released latest version of the Gemstone Book. The first book released after the Congress meeting in Munich, Germany this past February was the Pearl Book.

The CIBJO Blue Books are a definitive set of standards for the grading, methodology and nomenclature standards for diamonds, coloured gemstones, pearls, precious metals, and recently, also for gemmological terminology and nomenclature. The CIBJO Blue Books were originally compiled, and now continuously updated, by a number of committees comprised of representatives from trade organisations and laboratories in the diamond, coloured gemstone, cultured pearl, precious metals and jewellery industries. The standards represent a consensus derived from the broad expertise on the subject within these committees, and also from individuals outside the committees who had expressed an interest in participating in the development of the guidelines.

Initially, the first three publications were printed with different coloured covers; blue for the Gemstone Book, grey for the Diamond Book, and green for the Pearl Book. In 2007, the Precious Metals book was launched and in 2010 the CIBJO Gemmological Book was released. Today, these publications are generally referred to as the CIBJO Blue Books.


Please note these are available for download in our Downloads section.