Rio Tinto Diamonds has released its new range of champagne diamond promotional material, the company said Wednesday. “The new range of promotional materials is aimed at supporting the retailer, educating the consumer and opening up new distribution channels.” said Jean-Marc Lieberherr, head of Rio Tinto Diamonds NV, the Belgium-based company that sells the champagne diamonds. Rio Tinto is the largest supplier of champagne diamonds, which it mines at its Argyle mine in Australia.

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