Hawaii’s Kilauea Volcano Spews Green Crystals

The lava currently erupting from Hawaii’s Kilauea volcano happens to be very crystal-rich. Launching some 130 feet into the air and landing on and near homes, olivine—an olive green gem—happens to be common on the island (and turns certain beaches green) but not usually falling from the sky. The gems were formed under the ground long ago, but the violent eruption spews them and separates …

A Rare Blue Diamond Breaks Records in Asia

An extraordinary 10.10-carat blue diamond broke records yesterday after selling for $31.8 million at a Sotheby’s auction in Hong Kong. The rare gem—which holds the highest classification for colored diamonds called “fancy vivid”—is now the most expensive diamond to have sold in Asia. But behind the massive jewel’s glamorous sparkle hides a dubious history involving a foiled heist attempt, “stone burning,” and more. Head to …