Cartier Trinity Sapphire Yellow Gold Earrings. Yellow gold and sapphires are paired together in harmony to create the exciting and innovative design of this pair of Trinity earrings from Cartier. The earrings are made of 18K yellow gold and each earring is set with a single sapphire cabochon. France, circa 20th century
Wittelsbach-Graff Diamond ($24.3 million) Unearthed in India in the mid-1600s, the original Wittelsbach Diamond weighed more than 35 carats and was once part of the Austrian and Bavarian crown jewels. In 2008, it was purchased by the English jeweler Laurence Graff, who in 2010 revealed that he had refashioned the Fancy Deep Blue diamond, removing several flaws as well as four carats.