FRED HARVEY ERA Blue Abalone Sterling Silver Navajo Men's Ring Large Sz 15 13+g

  
FRED HARVEY ERA Blue Abalone Sterling Silver Navajo Men's Ring Large Sz 15? It has that Opalescent look to it. I think it abalone covered with something blue. If it is a stone it's relatively soft as it has scratches on it. Too big or my ring sizer.

The internal diameter appears to be about 25mm. I believe it is size 15. If you have any questions don't hesitate to ask!

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