ABEX
Association Belge des Experts 
www.abex.be 

Antwerp Diamond Club 
Diamantclub van Antwerpen
www.diamantclub.be 

AGTA
American Gem Trade Association
www.agta.org 

BBB
Better Business Bureau
www.bbbonline.org 

Beurs voor Diamanthandel
Antwerp Diamond Bourse
http://www.diamondbourseantwerp.com/

BLCC
Belgium Luxembourg Chamber of Commerce in Hong Kong
http://www.blcchk.org/index.php 

CIBJO
The World Jewellery Confederation
www.cibjo.org

RJC
Responsible Jewellery Council
www.responsiblejewellery.com

DDC
Diamond Dealers Club of New York
www.nyddc.com





DFHK
Diamond Federation of Hong Kong
www.dfhk.com.hk

DMIA
Diamond Manufacturers & Importers Association of America
www.dmia.net

ICA
International Colored Gemstone Association
www.gemstone.org 

IDCA
Indian Diamond and Colorstone Association
www.idcany.org 

ISO
International Organization of Standardization
www.iso.org 

JA
Jewelers of America
www.jewelers.org 

JVC
Jewelers Vigilance Committee
www.jvclegal.org 

MJSA
Manufacturing Jewelers & Suppliers of America
www.mjsa.org 

NCDIA
Natural Color Diamond Association
www.ncdia.com 

WDC
World Diamond Council
www.diamondfacts.org