At 23.1 carats, the gem is one of the largest Burmese rubies in the world. Chip Clark/National Museum of Natural History, Smithsonian Institution We don't need Wagner or Tolkien to tell us how ...

GENEVA | A rare Burmese ruby in a platinum ring with diamonds sold for $30.3 million at auction, setting a world auction record for any ruby and for any stone by Cartier, according to Sotheby's. The ...

Jewellers have made it easy to buy a diamond while keeping your conscience clean. They’ve adopted a passport system showing the origin of every stone, so you can be sure that your hard-earned money ...

Gift 5 articles to anyone you choose each month when you subscribe. Leonard Joel has been busy building a reputation as the auction house of big-ticket jewels and million-dollar-plus diamonds. It ...