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Over the past year or so, a new enhancement technique is being used. Sapphires of an orangy color may have been diffused. This treatment involves the heating of natural sapphire with Beryllium. The Beryllium diffuses into the sapphire crystal structure and changes the color of the sapphire - typically causing an orange color, increasing the desirability and the saleability of the sapphire. This technique of enhancement is not easily detected and is very often not disclosed. Many orangy sapphires have appeared on the market recently, as well as the rare Padparadscha color. Please be advised that orangy-colored sapphires might have been diffusion treated using this process.
Note that all orangy-colored sapphires in our inventory are a minimum of several years old and therefore DO NOT have this form of enhancement. Because of this process, we are not purchasing material which falls into this color range unless it has been certified by a lab that the color is natural.
Should you wish orange colored sapphires, please contact us with your needs. We will continue to seek out good colored, faceted orange sapphires, but unless they are determined to be of natural color by a gemological lab, they are suspected to have been diffusion treated. Please be aware that most of the material out there in the market are indeed diffusion treated and the colors may extend into other colors beyond pure orange."
The bit in red seriously worries me. Just because a stone is over 2 years old, how on earth can they be certain that it''s not BE treated???? I know for a fact that BE sapphires were being sold in the UK 5 years ago! I have to say that some of their Sapphires look a bit too good to be true and do look like BE treated sapphires. I realise that''s a big assumption but if it''s only orange/pink sapphires that they''re sending for testing .......................
Date: 4/24/2010 6:22:31 PM
Author: Arcadian
Very interesting. I had asked about if a stone I was interested in was heated and was told probably not but they didn''t know.
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Sometimes they''re heated, sometimes they''re not which isn''t a terrible deal since zircons usually are. However, if not heated the color fetches a heck of a lot more per ct...we all know that.
Date: 4/24/2010 7:48:12 PM
Author: Arcadian
Basically you''re telling me that asking if a stone is heated or not from a vendor opens a can of worms.
Its my right as a consumer to make the best informed decision that I can for what I buy
Date: 4/25/2010 2:18:20 AM
Author: Arcadian
So with that I'm hard pressed to find out why I'm getting side eye from you and you're thinking I'm doing something wrong here.
-A
Date: 4/25/2010 6:43:42 PM
Author: VapidLapid
The heating of zircon is an interesting subject, but was not the issue that Arcadian brought to the forum.