Antiquediamondruby and diamond cluster ring. Set with a round old cut diamond to centre in an open backrubover setting with a weight of 1.00 carats, encircled by sixteen channel set calibrénatural unenhanced rubies in open back rubover channel settings with an approximate combined weight of 1.00 carats, further encircled to an outer border and shoulders with thirty four cushion shape old minediamonds in open back grain settings with a combined weight of 1.00 carats. The total approximate diamond weight is 2.00 carats, to an ornate cluster with a finely engravedgallery, scalloped collet and intricate pierced backholing, leading to a solid tapered shank. Testedrose gold and platinum, circa 1905.