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 Post subject: Flux grown VS hydro thermal ruby
PostPosted: Sat Apr 11, 2020 11:17 pm 
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I have always been told that chatham's flux grown sapphire and ruby are the best one available in the market. However, a friend of mine recently told me that russian and japanese made hydrothermal sapphire and ruby look exactly like chatham at a fraction of the price. They also have some inclusion like most chatham's flux gems.

Does any of you have compare the quality between those two? what do you experts think? I have not seen the material. I wonder if the hydrothermal sapphire and ruby can produce the same (or better) color compare to chatham's flux grown counterpart?


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 Post subject: Re: Flux grown VS hydro thermal ruby
PostPosted: Sun Apr 12, 2020 10:05 am 
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In my opinion the hydrothermal, and flux synthetic corundums produce very nice colors, and have a more natural look and texture to them when compared pulled, or flame fusion produced stones.


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 Post subject: Re: Flux grown VS hydro thermal ruby
PostPosted: Sun Apr 12, 2020 10:35 pm 
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1bwana1 wrote:
In my opinion the hydrothermal, and flux synthetic corundums produce very nice colors, and have a more natural look and texture to them when compared pulled, or flame fusion produced stones.


how about the inclusion? in my chatham speciment, alhtough it look eyeclean, i can see some crystal inclusion and fingerprints under microscope. how about the hydrothermal counterparts tho?


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 Post subject: Re: Flux grown VS hydro thermal ruby
PostPosted: Mon Apr 13, 2020 10:16 am 
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Yes, there are characteristic inclusions in Hydrothermal synthetic Ruby. They are a primary means of identification as they are in all ruby natural or synthetic.

Lots of information on line about this

Start here

https://www.gia.edu/gems-gemology/winte ... hetic-ruby


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