The venerable auction house is unloading one-of-a-kind gold necklaces, rings, trinkets and more from ancient Greece, Rome and ...

Historically, gems have been divided into precious and semiprecious classes. There are a number of semiprecious gems, many quite beautiful, but diamonds, rubies, sapphires, and emeralds continue ...

What is the difference between precious vs. semi precious gemstones? According to the International Gem Society, 2 today’s gemologists don’t typically classify gemstones as precious or semi ...

The Gold Sheen Sapphire, a recently discovered gem, has swiftly claimed the title of the second-rarest gemstone on Earth. Its ...

Semi-precious gems are also having a moment, driven by concerns about ethical mining and lab-grown doppelgangers. It’s time to take a look. Insofar as we’ve covered diamonds before in this ...