On May 6 local time, a 22831 Carat White Diamond "rock" was displayed at a preview held by Christie's auction house in Geneva, Switzerland, which is the largest white diamond in the history of the auction market. 

 The gem is valued at between 19 million and 30 million Swiss francs (about 190 million yuan), and may become a highlight of the auction at the magnificent jewelry auction in Geneva on May 11, 2022.