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 ...

Back in the day people were more relaxed about moving precious stones around the world. Consider, for example, the low-key arrangements for the famous Jonker diamond, which was shipped by ordinary ...

Africa's leading authority on rare colored gemstones, The Rare Gemstone Company, unveils one of its most exceptional pieces ...

Diamonds and emeralds might dominate the limelight, but there exists a world of gemstones so rare and valuable that they are the stuff of legends. What exactly makes a gemstone rare and valuable? It's ...

Don’t let its dusty, artsy, downhome vibe fool you — Tucson in February plays host to the jewelry industry’s heaviest hitters. They come to this Arizona desert town to attend a confluence of gemstone ...

The intaglio was likely set in a signet ring and used to stamp correspondence at Bremenium, a military outpost located ...

Tsavorite garnet is among the world's rarest colored gemstones, found exclusively in a narrow geological belt spanning parts of Kenya and Tanzania in East Africa. The mineral's scarcity becomes ...