1920s Italian circular diamond cluster ring in 18kt yellow gold

1920s Italian circular diamond cluster ring in 18kt yellow gold. Centred with a 0.60ct round transitional cut diamond in a platinum grain setting, encircled by a row of eight round transitional cut diamonds in platinum grain settings, to a round cluster design with low and smooth settings, platinum border and openwork gallery supported by graduating cheniers, the slightly trumpeting shoulders raise to met the central cluster before smoothing to a solid shank. Estimated total diamond weight 1.80cts. Marked 18kt gold.