GENEVA -- The " Oppenheimer Blue" diamond sold Wednesday for more than 56.8 million Swiss francs ($58.2 million) including fees, setting a new record for the per-carat price for a diamond.

The largest internally flawless fancy vivid blue diamond ever put up for auction sold for a staggering $43.8 million at a Christie’s sale of rare jewels in Geneva on Tuesday, the auctioneer said.

Big Number $57.5 million. That’s how much the 16.63-carat Oppenheimer Blue, sold for at auction in 2016. It holds the record for the most expensive blue diamond.