Gorgeous vintage Sarah Coventry Ring, with a black monochrome, six rhinestones and adjustable metal base.
The inside of the ring reads "Sarah Cov UK".
Sarah Coventry was a company who setup affordable, luxurious jewellery in New York in 1949. They used various designers across thr globe, including the UK.
They filed for bankruptcy in 1981, so it is likely this piece was created between the 60s-70s based on the mark.
The ring is adjustable but is roughly a size N.
A very beautiful and unique piece.