American, 2nd half - 20th century. Three gold rings to include: stamped '10K' ring with center oval cut ruby (approx. 5mm x 3..2mm), four small single cut accent diamonds, Sz 7, 2gr; stamped '585' Art Decoring with center rectangular cut synthetic ruby set with small single cut diamond, Sz 4.25, 4gr; Together with stamped '14K' ring with oval synthetic ruby (approx. 7.0mm x 5.0mm), enhanced with twenty-two rounddiamonds, each approx. .01ct (I-1 clarity, H color), Sz 6.5, 4gr. (accompanied by appraisal stating replacement value of $900.00)