Rivista Italiana di Gemmologia #2: Available NOW in English - September 2017; See Gemological Articles below for full details!
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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Fri Aug 11, 2017 3:50 pm 
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hi ya'll! got a piece of what I was told came from the SAO, ruby laser rod (titanium doped sapphire) cuts up real nice hope everyone's well! JGraham's 3 Blade Triangle design 103 facets 12.7x12.4mm 8.08 cts.

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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Sat Aug 12, 2017 9:06 pm 
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micra wrote:
hi ya'll! got a piece of what I was told came from the SAO, ruby laser rod (titanium doped sapphire)

Wait, those are two totally different things. Laser ruby is chromium-doped sapphire (Cr3+:Al2O3), but titansapphire is titanium-doped sapphire.

(Supposedly, Ti4+:Al2O3 is called "titansapphire" and Ti3+:Al2O3 is just called "titanium-doped sapphire", but I can't find any evidence for this so I don't know if it's valid. One is Padparadscha-coloured and one is brownish-reddish-orange.)


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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Sat Aug 12, 2017 10:21 pm 
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Faceting 101 by Arya wrote:
micra wrote:
hi ya'll! got a piece of what I was told came from the SAO, ruby laser rod (titanium doped sapphire)

Wait, those are two totally different things. Laser ruby is chromium-doped sapphire (Cr3+:Al2O3), but titansapphire is titanium-doped sapphire.

(Supposedly, Ti4+:Al2O3 is called "titansapphire" and Ti3+:Al2O3 is just called "titanium-doped sapphire", but I can't find any evidence for this so I don't know if it's valid. One is Padparadscha-coloured and one is brownish-reddish-orange.)


You may be right! I can say that the color rendered is true- no flash, no lighting, just what indirect light was coming thru the front door. I believe the dopant was Ti4, but I don't really want to call it titansapphire ew! I would rather say created pink sapphire! I love the color!


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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Sun Aug 13, 2017 6:46 am 
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I have been giving away and cutting pieces of this rod for years. It's almost gone now.

http://www.redoptronics.com/Ti-Sapphire-crystal.html

The most interesting thing about the material is it is singe oriented crystal. If you look at the backlit rod and rotate it. the color changes from a light magenta to a peach/pink color. Some stones cut from this often show both colors. This one does. A simpler cut would probably show the effect more strongly.

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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Tue Aug 15, 2017 4:30 pm 
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3.55 ct Madeira Citrine - Voltolini's Sakura 96


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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Thu Aug 17, 2017 4:55 pm 
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A natural spinel 6.5mm .90ct

Cut and polish are excellent but the photography is not, sorry.

Strong emerald green under halogen and shifts toward blue in sunlight.

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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Mon Sep 04, 2017 11:44 pm 
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Still playing with the concept of the carved bubble at the culet.

I wanted a cat... I got a lion! :lol:
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Smokey quartz, 10.6 ct.


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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Tue Sep 05, 2017 11:26 am 
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A lion is just a really big cat and that one's a beauty! =D>


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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Tue Sep 05, 2017 10:16 pm 
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Amazing Maialetto. Must have taken a lot of designing, really effective.


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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Wed Sep 06, 2017 8:37 am 
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Wow! That is quite amazing. Great work.


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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Wed Sep 06, 2017 3:02 pm 
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Maialetto

your lion has an overbite...

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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Wed Sep 06, 2017 3:31 pm 
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Marlow wrote:
Maialetto your lion has an overbite...

If you are talking about the 4 "spikes" in the lower part, those were supposed to be the whiskers of the cat :P


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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Thu Sep 07, 2017 1:52 pm 
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maialetto wrote:
Marlow wrote:
Maialetto your lion has an overbite...

If you are talking about the 4 "spikes" in the lower part, those were supposed to be the whiskers of the cat :P


No, the four little teeth directly under the nose...

But I am just kidding - You are an artist!! =D>

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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Thu Sep 07, 2017 4:26 pm 
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That lion turned out great! Definitely a good match for the material too.

This isn't nearly as exciting but I thought they turned out kind of cool--consecutive polished slices from an NC star ruby
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It had inclusions in the center of the stone that would have made cabs pretty unexciting but it doesn't detract from the slices nearly as much, and the silk patterning is pretty nice, with a couple of them showing subtle trapiches as well.


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 Post subject: Re: Off the dop - post YOUR latest creation
PostPosted: Thu Sep 07, 2017 4:54 pm 
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Marlow wrote:
No, the four little teeth directly under the nose...

Ah, OK. Maybe I should change model?
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