Vintage Sterling Silver Marcasite and Sleeping Beauty Turquoise Ring

This exquisite ring has been part of my carefully curated collection of vintage jewelry that I am now letting go of. It's been well kept and gently used over the years. Let's find an offer together that works for both of us. A note about sizing: The ring measures closest to 5.75 on my ring sizer. However, please note that vintage rings can sometimes be challenging to size precisely. I've included clear photos of the ring on my sizer for reference to help you gauge the fit. A note about the stone: Based on the image, the turquoise appears to be Sleeping Beauty, known for its clear sky-blue color. However, I'm not able to confirm this with absolute certainty. A note about the maker: I've been unable to identify the specific maker of this piece. It's very difficult to get a clear view of any potential markings with my eye scope. Features TURQUOISE stone (likely Sleeping Beauty) Intricately adorned with MARCASITE stones VINTAGE piece SIZE: 5.75 (see note/images on sizing)