The largest blue diamond to hit the auction block has been sold. It sold for more than $44-million at Christie's Auction House.
The more than 17-carat blue royal ring is now the most expensive jewel sold at auction this year. It’s the most internally flawless fancy vivid blue gem ever to appear for sale in auction history. It had been part of a private collection for 50 years and will now be handed over to another collection.
Source: CBS News