ADTEC (Pty) Ltd - Creators of the world's foremost Rough Diamond Price List and Rough Diamond Price Calculator Software

Diamond Education College - Accredited providers of Rough Diamond Evaluation and Grading, Rough Diamond Marking, and Polished Diamond Grading courses.

Engagement Rings Info - The truth about buying engagement rings below wholesale prices. - the meeting place for Gemseekers, Tourists, and Miners alike, lots of stories, pictures and information about the CQ Gemfields and Sapphires

MC Diamonds - A diamond polishing factory that sells top quality, certified diamonds directly to the public.

The Harry Oppenheimer Diamond Training School is a joint venture project of the Diamond Foundation of South Africa in partnership with De Beers. The Master Diamond Cutters Association and the Rough Diamond Dealers Association constitute the membership of the Diamond Foundation of South Africa.

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1997 ADTEC