Emerald and diamond coronet cluster ring. Centrally set with an octagonal emerald-cut natural emerald with no colour enhancement in an open back claw setting with an approximate weight of 1.00 carats, encircled by a single row of ten round old cut diamonds in grain and millegrain settings with an approximate combined weight of 1.00 carats, to a floral design with scalloped millegrain edging, ornate openwork gallery and circular backholing, the raised inwardly tapering shoulders supported by cheniers flow to a solid D-shape shank. Marked platinum, makers mark 'SMB', circa 1920.
