Christie's Sets a World Record: Most Expensive Ruby Necklace Sold at Auction

World auction record for a ruby smashed at Sothebys Sale of

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Christie's Sets a World Record: Most Expensive Ruby Necklace Sold

Most expensive jewellery sold at auction

Heidi Horten's Jewels Expected to Yield Record-Breaking $150MM at

The World's Most Expensive Rubies - Top 10! - Haywoods Jewellery

Austrian billionaire's jewels seen fetching over $150 mln at

Jewelry Sales For Christie's And Sotheby's Total $1.1 Billion In 2017

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Christie's $150M 'Largest, most valuable collection' to sell in May

The most expensive and exquisite jewellery pieces ever sold at auction