Choose, identify, and care for gemstones — backed by the encyclopedia.
Crystal 'meanings' are cultural tradition and symbolism, not proven effects. Here's where those meanings come...
Almost every pearl sold today is cultured, not natural — and that's fine. This guide explains the main pearl t...
Higher-karat gold isn't automatically better — it's softer and pricier. Here's what 10 K, 14 K, 18 K, and 24 K...
Most months have more than one birthstone, which is why gift-givers pick the 'wrong' one. Here's the full list...
The popular at-home diamond tests rule out cheap glass but quietly pass moissanite and lab-grown stones. Here'...
The cleaning methods that ruin gemstones are the ones everyone recommends. Learn which stones tolerate ultraso...
A plain-English guide to choosing a diamond and engagement ring — the 4 Cs explained, lab-grown vs. natural, s...
A plain-English guide to choosing a gemstone — how color, hardness, treatments, and certification shape what a...