Diamondruby and sapphire ring. Set with to top with a line of five square baguettenatural unenhanced rubies in open backchannel settings with a combined approximate weight of 0.75 carats, set to bottom with five square baguette natural unenhanced sapphires in open back channel settings with a combined approximate weight of 0.75 carats, further set to centre with five round French cutdiamonds in open back grain settings with a combined approximate weight of 0.50 carats, to a three line cocktail ring design with polished borders and intricately shaped backholing, the broad trumpeting shoulders smoothly taper to a solid shank. Marked yellow gold with platinum settings, maker's mark 'M.B', French, circa 1950.
Diamond ruby and sapphire ring, French, circa 1950.
Diamond ruby and sapphire ring. Set with to top with a line of five square baguette natural unenhanced rubies in open back channel settings with a combined approximate weight of 0.75 carats, set to bottom with five square baguette natural unenhanced sapphires in open back channel settings with a combined approximate weight of 0.75 carats, further set to centre with five round French cut diamonds in open back grain settings with a combined approximate weight of 0.50 carats, to a three line cocktail ring design with polished borders and intricately shaped backholing, the broad trumpeting shoulders smoothly taper to a solid shank. Marked yellow gold with platinum settings, maker's mark 'M.B', French, circa 1950.