The world’s most expensive substances command their prices for very different reasons. Some, like rare gemstones, are ...

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 ...

Discover the top 5 rarest diamonds in the world. Learn what makes these gemstones so unique, valuable, and extraordinary, ...

Walking into a jewelry store usually means seeing the same lineup of diamonds, gold, and maybe some sapphires if you’re lucky. Precious metals and classic gemstones have dominated the market for ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Jun 26, 2025, 02:26pm EDT Jun 27, 2025, 05:34am EDT A medieval ...

NAIROBI, Kenya, Nov. 03, 2025 (GLOBE NEWSWIRE) -- Africa's leading authority on rare colored gemstones, The Rare Gemstone Company, unveils one of its most exceptional pieces in its five-decade history ...

Imagine this, a young gemologist frowned as she inspected a ruby. “Without documentation, this could be from anywhere,” she sighed, articulating a frustration that haunts the global gemstone market: ...

Getting your Trinity Audio player ready... A rare gemstone discovered decades ago in a now-closed Colorado mine could sell for thousands of dollars in an October auction. Bidding for the chunk of ...

A Carthage man may have unearthed one of the rarest gemstones in the world — not in a mine, but in his own front yard. Robert Lewis Jr. says he found an unusual black rock just steps from his home ...