Mysterious 300 carat diamond necklace fetches $4.8m in Geneva auctionA diamond necklace linked to Marie Antoinette's scandal sold for $4.8m at auction, highlighting the value of historically significant jewelry.
Bulgari Celebrates With a 200-Carat Diamond NecklaceBulgari celebrates its 140th anniversary with a 200-carat diamond necklace priced at 40 million euros.