The Expert Guide to Gemstones & Jewelry

Everything about Green Tourmaline, or Verdelite: its remarkable electrical property, its symbolism, and how to choose your piece.

Everything about Ruby: why it's the second-hardest gemstone on Earth, what the famed "pigeon blood" designation really means, and how to choose your piece.

What Apophyllite is, the stone of spiritual clarity: properties, meaning, and why its delicate nature calls for special care.

What Orellanite is — the exclusively South American fluorescent mineral that glows under UV light — and why it's so extraordinarily difficult to source.

Discover Blue Lace Agate: its one-of-a-kind banded patterns, its calming symbolism, and how to choose your piece at Rocas&Cristales.