information on bracelet

[bthree]

This bracelet was part of my moms estate, and I can not seem to find any information on it. I am pretty sure it is not gold. The stones are green, the 3 large ones if you look at them from the side they appear to go from clearish to green. A antique dealer looked at it a couple of days ago, and has had a hard time finding information on it. If anyone knows any thing about it, I would appreciate it.

 

[Tourmaline]

These are glass rhinestones in brass.

 

[VRBeauty]

These are glass rhinestones in brass.

I agree.

If it were a natural stone, the most likely candidate would be prehnite. But - I suspect a set of stones so well matched in both color and opacity gradients would be quite rare and therefore set in a precious metal, and not one that's stamped as this bracelet is.

BTW, are there any marks at all on the metal?

 

[bthree]

I can find no marks on the bracelet. I thought maybe they were glass rhinestones, but they are just imperfect so I was not sure.
Thanks so much for your replies!!