At almost 10,000 feet above sea level, villagers in northern Ethiopia have uncovered a seam of pure black opal buried within hand-dug tunnels. The site, hidden in Wollo Province’s rugged terrain, is ...

For years, founder of Opal Auctions, kept an unusual opal in a drawer in his office. He bought it five years ago ...

Once owned by the Duchess of Devonshire, the rare Cartier opal tiara, which was last seen on Emerald Fennell at the premiere ...

A forgotten opal, a Winton mining family’s discovery and a remarkable exchange lead to the certification of a rare ...