BusinessJewelry.com is providing link to browse for body jewelry, handcrafted, bead & gemstone, diamonds, pearls, watches, wholesale, fashion, fine art, personalized jewelry, jewelry information.
German Gemmological Association
Training and research in modern gemmology. Programs and fees, diamond grading, and enrollment.
Jewelry Design
Aim is to provide an open, accessible and supportive channel for designers to share ideas.
The gemmological Association of Australia
The Gemmological Association of Australia (GAA) is Australia’s historic trade-accepted non-profit educational authority for gemmology.
Gemstone
ICA - International Colored Gemstone Association.
The Diamond High Council
The Diamond High Council (HRD) is the professional organization to defend and promote the interests of the Antwerp diamond trade and industry.