Old Necklace with Large Orange Stone

[JustinBushman]

I found this necklace while digging a Rev war campsite in Maine.
It has a trumpet clasp so it's most likely post 1840. The metal looks to be brass or copper.
There are 2 orange stones. The smaller one is cut nicely and really shines.
I have no idea what type of stones they are. My best guess is orange tourmaline, but it could be orange sapphire, or topaz.
I also don't know the age, but the design looks victorian.
All in all I had the best dig to date yesterday.
Any help would be appreciated.

 

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[tamrock]

By the shape and cut of the pendant stone and mount, I'm thinking it's more from the Art Deco era mid 1920's to 1930's It may have been thinly plated before. I also think the stone are imitation and maybe even colored glass, but I could be wrong. Best to have a jeweler inspected it first hand and see what they think?