Discover the Marie-Thérèse Pink Diamond and Blue Belle Sapphire at Christie's Auction House, featuring rare jewels with royal ...

A 10-carat diamond once owned by Marie Antoinette is up for sale. Christie's will auction it off as part of their Magnificent ...

The purple-pink modified kite brilliant-cut diamond featuring 10.38 carats holds an estimated value between $3 million to $5 ...