Farnese Blue Diamond From Marie Antoinette's Tiara Fetches $6.7 Million at Sotheby's Auction
May 16, 2018
The Farnese Blue diamond that once made up part of former French Queen Marie Antoinette's tiara, was sold at auction for $6.7 million. Sotheby's said the stone had spent 300 years hidden away in a royal jewelry box.
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