1950s Cultured Pearl and Ruby Bow Brooch In 14kt Yellow Gold. A three-dimensional decorative bow brooch with two wings openwork loops, gathered together at the centre with a 5.0mm Cultured pearl set knot and adorns with five (5) natural rubies in openwork claw settings, combine approx. 0.5ctw. C-lock safety clasp. Measures 1 1/4" x 1.0", weight 5.5 grams, hallmark 14K