Calling all ruby specialists

[Rubywoo]

Hi all,
I just purchased a ring that was quoted as being a ruby or synthetic as it shown some fluorescence under black light. Its 10k...she said it was an older setting from 1900's. What is everyone's guess? Is it a real ruby? thank you all!

 

[voce]

I think it looks like synthetic or rubellite tourmaline.

 

[Bron357]

Man made rubies have been around well over 100 years so being “old” doesn’t mean it’s likely to be natural.
Natural rubies are worth a lot of money, people who sell them who even think they might be natural will get a report to confirm it and sell it for thousands.
So unless it comes with a report saying it’s a natural ruby, it’s 99.99% of the time a man made ruby, same chemical composition, same look, but made in a lab for a few dollars a piece.
Nothing wrong with lab rubies, still lovely, as long as you only paid a few dollars for the gem (in a gold ring maybe $100 / $150 tops).