Updated CIBJO Blue Books Available For Downloading
Editor’s NoteThe latest editions of all six CIBJO Blue Books, the definitive standards for diamonds, colored gemstones, pearls, coral, precious…
Gemstone Nomenclature
【New York, US】AGL Calls Attention to ‘Composite’ Change in Gemstone Disclosure Rules
Editor’s NoteThis article highlights a significant but underreported update from CIBJO, the World Jewellery Confederation. As noted by the American…