CIBJO releases Gemmological Special Report: considers process of separating measurable facts from opinion; See Gemological Articles below.
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 Post subject: Ruby, pigeon blood or sunset ruby in rough
PostPosted: Thu May 23, 2019 12:20 pm 
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When it comes to colour, I get mixed up with sunset or pigeon blood red ruby's.

To put my mind at rest there natural sand weathered rubies in rough from Madagascar mixed.
Thy are i'ver Pigeon blood or Sunset. I see them as pigeon blood but then I think of sunset,

So which is it ?



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 Post subject: Re: Ruby, pigeon blood or sunset ruby in rough
PostPosted: Thu May 23, 2019 1:42 pm 
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Pigeon's Blood is an archaic term used to describe rubies of high quality.
Some still use it. I do not.
The red corundum pictured below is not high quality. I'd call them specimens.
Image


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 Post subject: Re: Ruby, pigeon blood or sunset ruby in rough
PostPosted: Thu May 23, 2019 1:58 pm 
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Barbra Voltaire wrote:
Pigeon's Blood is an archaic term used to describe rubies of high quality.
Some still use it. I do not.
The red corundum pictured below is not high quality. I'd call them specimens.
Image


I'd call them specimens too as I think there to small and also they are weathered from elements,
If there polished it could improve them from weathered skin on them as there was sieved from sands there still have sand on some of them.

Also why are 98% of ruby's heat treated in some way when there cut in to gems.


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 Post subject: Re: Ruby, pigeon blood or sunset ruby in rough
PostPosted: Thu May 23, 2019 2:24 pm 
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Gems are treated to make them look more like gems and less like specimens.
Here is an overview
Fluxed Up • The Fracture Healing of Ruby • Lotus Gemology

and
Fracture healing/filling of Möng Hsu ruby - Foreign affairs


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 Post subject: Re: Ruby, pigeon blood or sunset ruby in rough
PostPosted: Thu May 23, 2019 7:30 pm 
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Some of them have potential, at least for nice cabochons. Certainly a cut above the average specimen-grade ruby (which isn't say that much but still).

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 Post subject: Re: Ruby, pigeon blood or sunset ruby in rough
PostPosted: Fri May 24, 2019 8:22 am 
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I saw a tv show once (game of stones) ,there was someone there that used this term "sunset" to describe a specific type of rubies from cambodia that had a skin made them look like a specimens from the outside,but remarkably turned out into fine red rubies with high clarity, after they was heated to almost melting point degree.
i am not sure if this is even based on a true information , and anyway i doubt this is the case here.

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 Post subject: Re: Ruby, pigeon blood or sunset ruby in rough
PostPosted: Fri May 24, 2019 1:06 pm 
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Dor wrote:
I saw a tv show once (game of stones) ,there was someone there that used this term "sunset" to describe a specific type of rubies from cambodia that had a skin made them look like a specimens from the outside,but remarkably turned out into fine red rubies with high clarity, after they was heated to almost melting point degree.
i am not sure if this is even based on a true information , and anyway i doubt this is the case here.


Been looking up and think your right, Think there only sunset if there from Cambodia,
Not Madagascar.

Stephen Challener, Maybe a bit small for cabochons, but i'll keep them as specimen's for now, Thanks for your replies helps a lot to put my mind at rest since many gems have
different names, grades and colour.


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