1920s diamond and green stone platinum ring

1920s diamond and synthetic emerald platinum ring with a border of fourteen old cut diamonds in platinum setting with finely pierced gallery on plain shank, estimated total diamond weight approximately 0.85cts. Ring size K½.Condition Report The diamonds are all well-matched stones and all appear to be original to the ring, estimated H/I colour and SI-I1 clarity, estimated total weight approximately 0.85cts. The setting is in good condition commensurate with age. The centre stone has been replaced with a synthetic stone. The gallery and shank are in good condition. Not hallmarked but stamped 'plat'. Weighs approximately 4.3 grams.