Kashmir sapphire??

[rasztapaszta]

Good day!
Dear forum partners, I would like to ask you for a little help.
I would like to get some information about the ring that my family has owned for decades to see if the sapphire can really glow red 365nm wavelength
Under a UV lamp?
Because after reading it, there are quite a few places that what contains more chromium can glow red and if the natural gemstone glows red, and that the description also applies to cashmere blue sapphire. I've also read about toppics on the forum here already.
Thank you for your help!!!

 

[Autumn in New England]

Hello there! So natural blue sapphires can indeed fluoresce red under long wave UV light. Blue sapphires usually contain titanium and iron in their crystal structure. For them to fluoresce red, they must also contain chromium, and very little iron (because iron is a fluorescence quencher). The fluorescence in your sapphire is quite strong, which is a positive sign. But I would definitely have it tested by a reputable lab to be sure (they can analyze it mounted). Synthetic corundum can also fluoresce, but is usually weaker (if red) and more often green/yellow. As you can see, the minutia of these phenomena is very involved!

As far as origin is concerned, I really couldn't venture a guess based on the info provided. But, again, a lab may be able to pinpoint it. Good luck!

 

[Bron357]

Most blue sapphires don’t fluoresce under a UV light. It’s only when chromium is present and not extinguished by the iron component.
However lab grown blue spinel can fluoresce red.
Origin in sapphires is usually determined by the types of inclusions seen under the microscope or sometimes chemical trace analysis is required to positively ID origin.
You would need to send it to a top tier lab for conclusive identification, only the top tier labs have the equipment to perform chemical trace analysis.

 

[rasztapaszta]

With a 15x magnifying glass, I discovered a cloudy inclusion in it at one of its tips, and I found such a bubble-like thing scattered. I didn’t perceive any curved growth lines in the stone more many parallel lines from a lighter to a darker one.

 

[rasztapaszta]

UV and image does not fully return the real glow unfortunately.

 

[CaseyLouLou]

You should send it to a lab. I just sent mine out today to GIA. It only costs $85. Nobody here can tell you anything from photos.

 

[Autumn in New England]

You should send it to a lab. I just sent mine out today to GIA. It only costs $85. Nobody here can tell you anything from photos.

Looking forward to hearing about the results!

 

[rasztapaszta]

the problem is that i live in hungary and i don't really know where to go to such a downstairs there is a dragako lab here in our city too
but unfortunately I can't really say anything like that.

 

[rasztapaszta]

there is such a cloud in the other there is something in the other but it is said that it is a cloudy star.

 

[Bron357]

Only a lab with appropriate equipment can positively identify a sapphire as being of Kashmir origin.
Kashmir sapphires are rare, desirable and valuable.
Because of that if you were wanting to buy or sell a sapphire purported to be of Kashmir origin you would insist on an appropriate lab report as proof to warrant the price.

 

[pokerface]

I can see curved growth lines just from these photos. You could send to a lab, but I'd recommend saving your money, as this has all the hallmarks of a synthetic. I'm guessing the metal is unmarked or silver - valuable stones are never placed in these kinds of settings.

 

[rasztapaszta]

mark on the gold ring 585 gold

 

[rasztapaszta]

 

[rasztapaszta]

 

[Gloria27]

If you find Soviet markings for 14k gold you can bet it's synthetic 99% of the time.

 

[rasztapaszta]

I found this cloud in one of its apex and smaller parts.

 

[pokerface]

Now you can see gas bubbles along with curved growth lines which proves this is Verneuil (flame-fusion) synthetic corundum.

 

[rasztapaszta]

hhhhmmm
I do not see the curved growth lines.

 

[Avondale]

OP, if you want to receive more detailed and comprehensive information on your family ring, I suggest you have a qualified gemologist examine it. Best if you have access to a lab somewhere in your area that can assess origin since that's of particular interest to you. Just as it's very difficult to judge whether a stone is natural by picture alone, it's also difficult to conclude whether it's synthetic and people have been know to be wrong in their guesses on the matter before.

Keep in mind that origin can only be presumed to a degree of certainty. Even labs state their opinion on origin is just that - an opinion.

 

[pokerface]

This stone looks essentially identical (other than the color) to the synthetic ruby you posted in an earlier thread. If there is genuine doubt I recommend a lab but to me there is just no doubt here. It's synthetic.

 

[Autumn in New England]

I do not personally see the curved growth lines or gas bubbles in your photos (just looks like some schmutz and lint on the surface of the stone to me). But I agree with @Avondale... best to send this guy off for testing if you want certainty. We're only guessing - educated guesses perhaps, but still guessing. Good luck!

 

[rasztapaszta]

The surface of the stone was completely cleaned in front of the pine forest.

 

[rasztapaszta]

I just noticed that the stone in the ring looks upside down as a milled color zone but may be a camel.
Has anyone ever encountered a trait like this?
It looks very interesting.

 

[kenny]

The surface of the stone was completely cleaned in front of the pine forest.

What's the significance of cleaning "in front of a pine forest"?

 

[rasztapaszta]

Fényképezés előtt megtisztítottam a felületet, hogy minden szebb legyen.
I forgot a little about that comment

 

[Autumn in New England]

What's the significance of cleaning "in front of a pine forest"?

Yeah, I was sort of wondering the same thing. I figured our friend here is a tree-hugger and likes to commune with the forest while cleaning his gems.

Fényképezés előtt megtisztítottam a felületet, hogy minden szebb legyen.
I forgot a little about that comment

I just learned that, in Hungarian, this means, "before shooting, I cleaned the surface to make everything more beautiful."

 

[kenny]

Opps, you beat me to it.

 

[Autumn in New England]

I like the added touch of including the screenshot though, @kenny!

 

[kenny]

Ain't the internet amazing!?!

 

[Bron357]

Unfortunately it’s difficult to tell from the photos if the gem is natural or lab created and certainly not it’s origin or possible treatments.
That’s why you need a gem lab for a report.
If your interest is just “I’d like to know” and it’s difficult to get a professional evaluation, I’d just love it and wear it.
If you are wanting to sell the gem / ring, you will definitely need an evaluation because a lab made sapphire is worth like $50 and a unheated Kashmir like $50,000 plus.