13.22-Carat Winston Blue Diamond Fetches $24 Million, Christie’s Sets New Jewelry Auction Record
By Erika Winters Rahul Kadakia, international head of Christie's jewelry department, auctions the "Winston Blue" diamond. Image: Christie's At 13.22 carats, the "Winston Blue" is known as the largest fancy vivid blue diamond in the world. And on May 14, the gem established a new world auction record ...