Nov 262010
 
Green sapphire crown and a synthetic ruby pavilion

Figure 1

Admin: Alan Hodgkinson is a Special Guest Author for the AIJV. Here is an excerpt from his soon to be released book ‘Gem Testing Techniques’

Nothing could be easier than to identify a gemstone as a composite (doublet or triplet) when confronted by a loose gemstone.  A view of the junction plane will normally reveal the dual component quite easily, regardless of the skill of the maker of such counterfeit gemstones. Continue reading »