EXPOSED - Gemstone Treatments Revealed

  • Birmingham Assay Office
  • 10:00AM
  • £265+vat per person

This is a hands-on course designed for those who already have knowledge of Coloured Gemstones and will reveal the inside story about gemstone treatments. Under the expert tuition of Gwyn Green, delegates will study a range of sample stones and learn some important lessons about detecting treatments and recognising the tell-tale signs that a stone is not entirely natural and. Provides 6 hours of Continuing Professional Development (CPD) Activity.



Why are gemstones treated?

Types of treatment and the gems suitable

·     Surface treatments

·     Surface and Sub-surface treatments

·     Treatments throughout

·     Which gems on the market are commonly subject to treatments?

Detection of Treatments

·     Appearance before and after treatments

·     Signs that a gem has been treated – what to look for

·     Simple tests to determine whether or not a gem has been treated

Reliability of treatments

The Down-side of treatments

Disclosure of treatments, CIBJO regulations


·       Examination of treated gems to compare appearance by eye and using magnification with untreated gems

·     Discussion of sophisticated techniques necessary for to detect some treatments.