American Gem Society (AGS)
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ALROSA
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Canadian Jewellers Association (CJA)
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CIBJO
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Diamond High Council (HRD)
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Diamond Information Center (DIC)
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Diamond Promotion Service (DPS)
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Gemmological Association of Great Britain (GAGB)
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Gemological Institute of America (GIA)
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The Israeli Diamond Industry
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Independent Jewelers Organization (IJO)
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Israel Diamond Manufacturers Association (IsDMA)
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Jewelers of America (JA)
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Jewelers Security Alliance (JSA)
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Jewelers Vigilance Committee (JVC)
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Jewellers Vigilance Canada (JVCa)
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Jewellery Council of South Africa
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Jewelry Information Center (JIC)
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Manufacturing Jewelers & Suppliers of America (MJSA)
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Platinum Guild International (PGI)
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