The world’s largest blue diamond will be put up for auction at Christie’s in Geneva in Geneva next month. Expected price in the $25 million range.

“The Blue”, is a pear-shape weighing 13.22 carats. It is described by Christie’s as “the largest fancy vivid blue diamond in the world.”

This handout picture released on April 25, 2014 by Christie’s auction house shows “The Blue” a fancy vivid blue pear-shaped diamond, weighing approximately 13.22 carats, flanked on either side by a pear-shaped diamond, weighing approximately 1.00 and 0.96 carat.

This handout picture released on April 25, 2014 by Christie’s auction house shows “The Blue” a fancy vivid blue pear-shaped diamond, weighing approximately 13.22 carats, flanked on either side by a pear-shaped diamond, weighing approximately 1.00 and 0.96 carat.