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Rio's custodians of rare beauty

Rare diamond collection from WA snapped up for world's wealthiest.

Karma Barndon
2017 Argyle Pink Diamonds Tender hero diamonds from Rio Tintos Argyle Diamond mine.

2017 Argyle Pink Diamonds Tender hero diamonds from Rio Tintos Argyle Diamond mine.

Rio’s Custodians of Rare Beauty collection, made up of highly sought-after fancy coloured diamonds, was presented in lots at the annual invitation-only tender event, where specially selected collectors,...

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