World Class Untreated Sapphires
SRI LANKA - MADAGASCAR - USA
Heating & Diffusion Processes on Rubies
Treatments on Ruby and Sapphire are becoming very common which makes it extremely important to identify such treatments to ensure the safety of gem & jewelry trade.
The following article by Swiss Gemological Institute provides a very accurate description of treatments currently done on Ruby along with the simplest possible methods of identifying such heat treatments.
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This article is brought to you by: SSEF
Written By:
Michael S. Krzemnicki
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