Three Cocktail Rings: A - Blue sapphire and 14k gold plate, "14KP EMA," with single offset, prong set diamond chip. Approximately 8.5 ring size. B - unmarked yellow gold sapphire flanked by 3 diamonds on each side. Approximate 4.5 ring size. C - Sapphire Marquise and diamond ring, 10k yellow and white gold setting, 6 tiny diamond channel set and 14 prong set, modern design, approximately 4.5 ring size.