A precious opal ring and a five-stone diamond half-hoop ring; the first ring comprises an oval-shaped precious opal cabochon, with a translucent body, displaying play-of-colours effect mainly ranging from green to purple on a light background, approximately measures 10.0 x 6.2 mm, mounted within a surround with twisted rope details, yellow metal marked '9ct', size I; the other ring contains five graduated old-cut diamonds, in coronet settings, flanked by diamond accented shoulders to tapering D-section shank, marked '18ct', size M½; Total weight of items 6.3 grams (2).