Blue Diamonds: De Beers Cullinan Blue to Mark New Auction Milestone
De Beers Cullinan - the rarest blue diamond at auction in Hong
De Beers Cullinan - the rarest blue diamond at auction in Hong
The De Beers Blue
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15.1-carat De Beers Cullinan Blue diamond fetches US$57.5 million
The De Beers Blue
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