One of the world's rarest diamonds nicknamed Bleu Royal is set to be auctioned next week.

<div class="block">One of the world&#39;s rarest diamonds nicknamed Bleu Royal is set to be auctioned next week.</div>

Need2Know Headlines

'Bleu Royal' Diamond to Go On Auction

One of the world's rarest diamonds nicknamed Blue Royal is set to be auctioned next week. Take a look. The 17.6 carat diamond ring is expected to sell for more than $50 million when it hits the auction block in Geneva on Tuesday, November 7th, Christie's international head of jewelry. So the diamond is quote internally flawless as best as can be end quote. Back in 2016, Christie sold another blue diamond, a 14.6 carat gem called the Oppenheimer Blue that sold for more than $57 million. Wow.