Vintage 14 karat Gold and Diamond Ring

A Vintage 14 karat Gold Ring, the Ring has been sized previously and there are all kinds of markings on it but none are clear or definitive, thus we can ascertain the karat by acid test. On a stylised shank there sits a dome with 13 Diamonds , the central one is 3.5 mm round and the rest are 2.5 mm Rounds, total diamond weight just over 3/4 of a carat. The diamonds are SI2 J colour. A very attractive Ring.