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…
ISO
CIBJO, ISO Agree: ‘Diamond’ Means Natural
Editor’s NoteThis article highlights a significant agreement between CIBJO and ISO to standardize the term “diamond” as referring solely to natural…