Vintage Sterling Royston Turquoise Cable Bezel Set Ring

Very vintage sterling silver Royston turquoise tear drop twisted cable bezel set split shank ring. The turquoise cabochon features a golden tan matrix. Condition: Good pre-loved...lightly cleaned. There are a few teeth missing on the top of the bezel. It is not really noticeable, but I am fully disclosing any condition imperfections. Hallmarks: None, but tested as sterling silver. Maybe be Old Pawn, but I can't say for sure. Size: 8