Looks like the stone is glued in,there's no inward bend to the gallery wire to hold the stone into the setting.
The turquoise doesn't look real.
You don't know what metal alloy the piece is,what type of patina solution was used.Was an acid bath used for the patina or another solution,etc....
Any dating would be a wild guess without a known history or maker's mark.With the die struck construction of the ring it was probably pre 1950's.
@wildrose The only person who can answer that question is the person who has it in hand.Looking under the silver straps on the square stones and...
From the photo it looks like a number of copper minerals in matrix,something like the photos in the link......
I think the stones are dyed travertine,but with some kind of surface treatment such as bead/sand blasted surface.There are a few very small spots...
Yes,but it looks curved to me,just a perceptive thing with photos,that's why I asked.
The stone would not have to be removed if the ring was resized.
Too hard to be specific with your photos.The metal is die stamped and assembled from multiple pieces and the seam at the bottom means nothing,just...
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