Ross Simons Gold over Sterling Greek Key Diamond Accent Hoop Earrings

Designer gold over sterling silver half hoop omega back earrings are signed 925 China Rs and feature a Greek key design with one small Diamond chip in each earring.   They measure 3/4 inch long and when viewed from the front they have a width of just under 1/2 inch.  They weigh 9.2 grams and they are in great vintage condition.