50.24-carat, VS1, brilliant-cut loose diamond, estimated at $10 million will hit the Ritchies Auctioneers in Toronto in November. If you choose a less expensive piece of jewelry, there you can find an18-carat, fancy yellow diamond ($1 million), a 78-carat fancy yellow diamond necklace ($600,000), a red ruby necklace ($500,000), and a rare Piaget watch priced at $200,000. The [...]