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BLUE OPPENHEIMER DIAMOND RING - GEMOLOGUE by Liza Urla
Diamond Aims for Record Auction Price
Top 10 Most Expensive Jewelry Items in the world - Wonderslist
Oppenheimer Blue" bricht Auktionsrekord - DER SPIEGEL
Oppenheimer Blue' diamond sells for £35m in auction record | BelfastTelegraph.co.uk
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Record crushed, diamond intact: Oppenheimer Blue draws nearly $58M (w/video)
Oppenheimer Blue diamond sets new auction record - BBC News
Oppenheimer blue diamond sells for record $57.5 million | Al Arabiya English
Blue diamond sells at Christie's for $57.5 million