Convertible diamond stud earrings. A matching pair of earrings, each set with one round brilliant cut diamond in an open back rubover setting two in total, with a combined approximate weight of 0.90 carats, to a striking diamond stud earring, featuring a removable yellow gold border, polished edges and open backholing, fitted to reverse with a secure post and clasp. Settings tested white gold and yellow gold, fittings marked 18 carat yellow gold, circa 1970.
