How to tell real jade from the fake

Chui demonstrates that genuine jade is not easily scratched, even with a knife.

A collector offers tips on how to tell if jade is real.

GENUINE nephrite jade is hard to come by these days, says art and antique dealer W.K. Chui. A beginner who wants to start a jade collection has to have deep pockets and should only buy from the most reputable auction houses and dealers overseas, advises Chui.