The presence of the warm, reddish-orange mineral in the Bronze Age archaeological site of Sanxingdui has long puzzled ...

Jewels, birthstones, gemstones—so many names for the glitzy, glamorous stones so many of us love to wear each and every day. This got us thinking: Is there a difference between jewels and gems? To ...

The Smithsonian's National Museum of Natural History acquired one of the world's rarest gemstones.Natural red diamonds are some of the rarest gems on Earth, and the Winston Red Diamond is exceptional ...

Birthstones have long been associated with each month of the year, each holding its own unique significance, color, and meaning. These precious gems not only add a personal touch to jewelry but are ...

A new way to improve the color, clarity and luster of rubies has been tested by scientists: put them in the microwave. Rubies are among the world's most popular precious gemstones, and are also used ...

The Gosfield seal is made of a medieval silver seal bezel surrounding an ancient Roman gemstone.