How to tell if jade is real: what you can check at home
How to tell if jade is real: what a kitchen scale and a glass of water can show, and why the scratch, sound, cold and lamp tests prove nothing reliable.
Jade A, B and C: the only classification that exists
Jade A, B and C describe treatment, not quality: left alone, bleached and impregnated, or dyed. What each letter means, and why sellers rarely know.
Is jade a precious stone?
Is jade a precious stone? There is no legal answer, and that is the interesting part. What French rules say about gemstones, and what they forbid.
Jade stone price: what makes a hundredfold gap
What sets a jade stone price, from very little to a fortune: the mineral, the colour, the translucency, the texture and the treatment, one by one.