International bodies and standards
CIBJO, The World Jewellery Confederation
Confederation of national jewellery trade organisations; publishes the Blue Books (standards for naming and grading)
CIBJO, the World Jewellery Confederation, founded in 1926, brings together national jewellery trade organisations from many countries.
What it does
Publishes the Blue Books, the trade's standards for naming and describing diamonds, coloured stones, pearls, coral, precious metals and laboratories, and holds an annual congress.
Why it matters to you
The Blue Books set out how stones and treatments should be described to customers; many national associations follow them.
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