Demantoid’s name means "diamond-like lustre," and the ... Highlights: This is an extremely rare gem in the Taaffeite family, and until recently, only eight stones were known to exist.

Gemstones have been a topic of fascination to human beings for centuries, not just for their beauty, but also for how rare they are, what they symbolise, and that they are worth millions.

We’re in the golden age of unique baby names — while “Emily” and “John” will always be classic choices, many people are searching for more uncommon names for their babies, and ...

Its uses in scientific research and medical imaging also contribute to its value. Taaffeite is also a rare gem that is worth around $35,000 a carat. Gemologist Richard Taaffe accidentally ...

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 rhodochrosite — a rose-red gem discovered ...