The Journal

Jadeite or Nephrite: How to Tell the Two Jades Apart

Two different minerals, one shared name. How to tell jadeite from nephrite — and why both are real jade.

18K, 22K or 24K Gold: What the Karat Number Means

What the karat number actually means — and why 18K, 22K and 24K wear, hold their colour and last so differently on the hand.