Antique ruby and diamond double cluster ring. Set with two cushion shape old cut natural unenhanced rubies in open back grain settings with an approximate combined weight of 1.00 carats, encircled by a single row of sixteen round old cut diamonds in open back grain and claw settings with an approximate combined weight of 0.50 carats, to an elegant double cluster with intricate pierced claws and circular backholing, flanked by split shoulders with petal and scrolling motifs, tapering down to a solid D-shape shank. Marked 18 carat yellow gold, full hallmarks for Birmingham, maker's mark 'A S' for Albert Sydenham, numbered '831N', '7451', English, circa 1904.
