At the end of the training program, the participant will be able to:

  1. Prepare for work activities relating to jadeite identification
  2. Identify jadeite treatment and classify jadeite type
  3. Separate natural jadeite from its simulants


  • Introduction to the history and definition of jadeite and nephrite, and their properties.
  • Learn the classification of jadeite into their commercial grades by their colour and transparency.
  • Practice the operation of handheld loupe, microscope, refractometer, spectroscope, polariscope, ultra-violet lamp and S.G. measuring etc.
  • Understand the different types of natural, treated and dyed jadeite and the treatment processes of making B jadeite.
  • Using instruments to test and separate the various types of treated jadeite (Type A, B, C, B+C, doublet and coating), and common jadeite simulants, including quartzite, chrysoprase, aventurine quartz, serpentine, hydrogrossular garnet, Dushan jade, albite, prehnite, idocrase, maw-sit-sit, fused-powder jadeite and glass.
  • Introduction to synthetic jadeite and their identification.
  • Emphasis on the ten-power handheld loupe to identify different types of jadeite and jadeite simulants.
  • Introduction to the application of advanced instruments, such as infrared spectrometer (FTIR) and cathodoluminescence in identifying jadeites.
  • Intensive practical sessions.

Duration : 20 hours. (8 sessions).

Course fee : S$500.00

Assessment fee: S$150.00 (2 hours assessment. WSQ program only)

Prerequisites: basic language literacy and reasonably good eye sight.




This unit is within the competency category of Sales and Customer Service and is one of the elective modules leading to the WSQ Advanced Certificate in Retail Supervision.