The Bleu Royal diamond is officially one of the most expensive diamonds ever sold at auction, with a whopping price tag of almost US$44 million (nearly C$60.7 million).

The fancy vivid blue diamond was sold in Geneva, Switzerland on Tuesday as part of a ring that contains two additional diamonds on either side. (A ‘fancy vivid’ diamond refers to a diamond that is non-round cut and displays an intense, unconventional color like blue.)

According to the Christie’s auction listing, the blue, pear brilliant-cut diamond is 17.61 carats and internally flawless. The two