Discover the history and properties of lapis lazuli, a stunning blue rock prized for its color and gemstone uses.

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 ...

Gemstones are valued based on the Four Cs - color, clarity, cut, and carat. Precious stones include diamonds, sapphires, rubies, and emeralds. Semi-precious stones are evaluated on their rarity ...