My newest purchase Vintage Blue Sapphire Diamond Ring

[Aussiewen]

Without the benefit of seeing it in person, I'm still extremely suspicious that it is a simulant (glass or CZ). It doesn't even look like lab grown/synthetic material to me. I didn't want to push it earlier since you seemed to think it was natural. But if you really did pay $3,000 for it, you should get it properly tested or return it if you are uncertain. No need to pay that price for a used mounting (do we even know if those are genuine diamonds?). What does the metal stamp say?

I can confirm that it’s definitely not glass or Zirconia. My diamond tester picks all that up. Unfortunately the stamp is non existent. Diamond tester picks up all the diamonds and they are old cuts. Only a gemologist I guess can tell me the rest.
Here’s a pic showing how transparent the stone is. Then when it’s worn the shade goes darker picking up the flashes of blue scintillation.
Thanks so much for your input.
Enjoy your weekend x

 

[Autumn in New England]

I can confirm that it’s definitely not glass or Zirconia. My diamond tester picks all that up. Unfortunately the stamp is non existent. Diamond tester picks up all the diamonds and they are old cuts. Only a gemologist I guess can tell me the rest.
Here’s a pic showing how transparent the stone is. Then when it’s worn the shade goes darker picking up the flashes of blue scintillation.
Thanks so much for your input.
Enjoy your weekend x

Yes, if you're doubtful, it's best to check with a G.G. I wouldn't want to have paid that price for a simulant (and I don't trust gem testers). I somewhat trust certain diamond testers, although they can falsely identify moissanite as natural. No substitute for a trained eye! Also, no metal stamp is likewise worrying. Good luck and happy Friday!!